When comparing Construct 2 vs Armory3D, the Slant community recommends Armory3D for most people. In the question“What are the best 3D game engines?” Armory3D is ranked 10th while Construct 2 is ranked 24th. The most important reason people chose Armory3D is:
Does everything in the same application. No exporting-importing assets, make a cube, hit run, cube appears, make a character, hit run, the character appears!
Specs
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Pros

Pro Quick to pick up
Construct 2 is fast to pick up, get into, and belt out some pretty impressive games in a relatively small amount of time. Seems to be built for people who don't have a lot of programming skills, but want to make great games.
Pro Simplicity - it is made for everybody to use and love
Construct 2 is a tool for not just programmers, but artists as well. You can create a game with only visual coding, which is easy to learn and doesn't require any previous programming knowledge. You can focus on making your game better instead of just coding. It has some limitations of course, but it's definitely worth it.

Pro Little programming knowledge needed
Using Construct 2 requires very little programming knowledge because it's all drag'n'drop, intuitive, visual and event-driven instead of code-only.
Pro Built-in physics system
Thanks to the great power of Erin Catto's Box2D, Construct 2 is able to make physics games which are similar to Cut the Rope and Angry Birds.
Pro Cordova support
You can use Cordova plugins from the community
Pro In-depth event system
Construct 2's event system allows for deep, detailed control over all aspects of your game. You aren't limited to just a few options. Rather, Scirra has thought of nearly everything in advance with access to any desired parameter of any object all paired with simple and intuitive ways to interact with them.
Your events can be organized with event sheets (that can be included in other sheets), event groups, sub-events, loops, and functions that make the coding portion of your game as efficient as possible. You don't need any programming knowledge, but if you do have some, you'll feel right at home with the freedom C2 offers.
Pro Supportive community
Construct 2 has a supportive community. Their forums have tens of thousands of topics with ten times more posts. The core maintainers are very helpful and friendly and often reply to questions or issues that may be discussed in the forums.
Pro Easy to create particles and animations
With spriter file implementation and internal animation editor Construct 2 provides an easy way of creating particles and animations.
Pro Free (feature limited) version available
A free version of Construct 2 is available. It's not time restricted in any way, but is feature limited.
Pro Active plugin ecosystem
Construct 2 has an active plugin ecosystem providing behaviors and features that smooth the workflow for certain game types.

Pro Export control for all major platforms
All platform exporters are part of the subscription. There are no additional fees and new exporters are added quickly and maintained well. Currently, 15 platforms are supported, including HMTL 5, iOS, Android, Windows, Chrome Store, PhoneGap and Scirra.
Pro Built in behaviors make development workflows very efficient
Behaviors add pre-packaged functionality to object types.
Pro Very fast preview
In Construct 2 you can preview your games instantly at any time. There’s no need to wait for compiling or other time consuming processes.
Pro Available on Steam
You can also download Construct 2 on Steam.
Pro One-off cost
It's a one off cost for Construct 2 and all updates to the Construct 2 editor are free for life.
Pro Supports camera, microphone, speech recognition and synthesis
Can use cameras in PCs and on mobiles. You can use the synthesis that can recognize your speech or you can write something and it can talk for you.
Pro Interface similar to that of MS office
This engine provides an intuitive workflow for people that are used to the Windows environment.
Pro Runs great on mobile
Performs well on most devices and browsers.
Pro Rapid development
After using a few quick tutorials you can quickly catch on to the event system this program uses and quickly be able to build any type of 2D game you want. You can download a few sprites from google and put together a working level of Mega Man with character movement / animation / enemies / collision detection / scoring / Tile map and AI within about 2 hours.
The built in behaviors are incredible. It's amazing how Construct can simplify the most redundant tasks in game development.

Pro Allow server-less multiplayer game creation
Construct 2 uses WebRTC technology to support it's multiplayer functionality. The nature of the technology allows peer-to-peer connection which does not require game developer to create server side architecture to allow communication between games.
Pro Supportive devs
The developers are always available to help.
Pro Built-in animation/image editor
Basic sprites and tiles of 2D games can be made with engine's built-in tools.
Pro Built-in pathfinding
Has built-in solutions for pathfinding.
Pro Built-in tilemap object
The tilemap object allows tile-based games to be designed more easily. The object's tilemap can also be edited in the layout view using the tilemap bar.
Pro Runs inside Blender
Does everything in the same application. No exporting-importing assets, make a cube, hit run, cube appears, make a character, hit run, the character appears!
Pro State of the art physically based rendering
Physically based
Cycles material nodes
Voxel-based global illumination
Temporal anti-aliasing
Tessellated displacement
Screen-space raymarching
HDR pipeline
Pro Free and open source
Pro Easy to use
Pro Node based programming and materials support
Pro Lightweight
Pro Export to multiple platforms
Export to all platform that Kha supports.
Pro A good community
Although the is an obvious lake of community help, it is still there if you look on the Armory forum or there discord your sure to find help for any problem you have.
Pro A growing community with more tutorials and documentation.
Although Armory has been a little slow in the development, tutorials on YouTube are being released almost daily and the documentation is also being updated regularly.
Pro No programing experience needed
Cons
Con Poor mobile performance
Construct 2 is focused on Javascript. Javascript isn't as fast as native code, which results in poor performance on mobile.

Con Free version is severely limited
Although a free version of the engine is available, it lacks features that are essential to creating a high quality product.
Con The editor is Windows only
Although Construct 2 is able to export projects to Windows, OS X and Linux, the program itself currently only runs on Windows.
Con HTML5 is very dependent on browser performance
Theoretically all browsers should run HTML5 pretty much the same way, but thats not always the case.
Something that worked fine on Chrome, for instance, might malfunction on Firefox (or vice versa). And there's nothing the devs of Construct 2 can really do about it, but to hope next Firefox update might fix it. Internet Explorer is not even recommended.
Add to that the fact that exporting to mobile or desktops rely on these sort of stripped down versions of web browsers (Node webkit, Crosswalk, Ejecta) that you pack with your game, and you can have a real headache if you're trying to make your game work properly through multiple platforms.

Con Does not export to native mobile code
Construct 2 builds to HTML 5 only, which can cause performance issues on mobile devices depending on the HTML5 engine that the OS is using since that will be the biggest bottleneck. Even though it's not really the engine's fault, it still is at a disadvantage compared to native game engines.
Con Discontinued as of July 2021, in favor of Construct 3
Construct 2 licenses cannot be bought anymore since July 2020, and support has ended on July 1st 2021 with the release of the final r280 version (see here). Existing customers can still use the game engine, but it will no longer be updated.
Con Clickteam Fusion Clone
This is a copy of the Clickteam softwares

Con Dependency on 3rd parties for all exports
Unless you are creating a game strictly for browser/HTML5 usage, exporting to desktop or mobile is risky, as Scirra have no control over your final export quality. Since desktop uses NodeWebkit and mobile is Crosswalk, Phonegap or CocoonJS there is no guarantee that your final export performance and quality will be up to scratch for pro level 2d games. These 3rd party "browser wrappers" are very prone to breaking and introducing lag and bugs that can't be controlled from Scirra's side.

Con HTML5 Only is extremely limiting
If the software could export natively to mobile devices and PC/Mac/Linux it would be extremely powerful. The developer's choice of sticking to only HTML5 has created a bottleneck for anyone wanting to develop with this software.
Con Tilemap object could be better
C2 requires that there's a tilemap objects for each tilemap layer meaning each tilemap object has to be updated when modifying any layer. This could be simplified by adding layer support for tilemap objects.
Con Buggy
Experience regular crashes and inexplicable project file corruption.
Con Unreliable access to online resources
Unreliable access to online resources such as online tutorials and forums, plus extremely outdated offline manual.
Con Lack of documentation
Con Not many developers use it
Armory3d seems to be quite exotic and it should be hard to find developers to help in projects.
Con Still in development
Con Slow development
Focus from the developer has shifted to another project, so development of this has slowed considerably.
Con Good looking but a terrible choice for any serious development
Terrible lack of support and lack of a serious delivery strategy. Multiple breaking changes to the master branches (usually the only branch actually) from the core projects as well as the myriad of dependencies it uses make it a nightmare to have something stable to create with. Might be good for prototyping if you stick to the releases, but stay away if you are planning to create something serious.
