When comparing Blender vs Cinema 4D, the Slant community recommends Blender for most people. In the question“What is the best 3D modeling software?” Blender is ranked 1st while Cinema 4D is ranked 3rd. The most important reason people chose Blender is:
Blender is licensed under the GPL. Some Blender modules such as the Cycles rendering engine are licensed under the Apache 2.0 license.
Specs
Ranked in these QuestionsQuestion Ranking
Pros


Pro Free and open source
Blender is licensed under the GPL. Some Blender modules such as the Cycles rendering engine are licensed under the Apache 2.0 license.

Pro Wide import and export format support
Support lots of modern 3D formats including DAE and FBX - ideal for game developers.
Pro Has a powerful rendering engine
Blender runs the Cycles path tracing engine under the hood. Cycles is a very powerful rendering engine capable of full path tracing (light fall off, caustics, volumetrics). It is mostly compatible with OpenCL and CUDA rendering, and is implementing mycropolygon displacement features. The upcoming release has a viewport engine called EEVEE whereby you can see and interact with your work in render mode in real time!

Pro Python extensibility
Blender embeds Python 3, which can be used to write add-ons, tools, extend the interface, rig characters and automate tasks.

Pro Powerful animation suite
Blender provides a full rigging system, and automates animation by interpolating between keyframe positions.
Pro Supports both low-poly and hi-poly modeling

Pro Regular release schedule
Releases are made every ~3 months.
Pro Sculpting and 3D painting features
Although Blender's 3d painting and sculpting tools (mostly painting) are not at par with specialized software like Substance Painter, ZBrush, or Mari, it is more than capable of getting most jobs done if the user takes the time to learn and understand it.

Pro Includes video editing & compositing tools
Blender's node-based compositor has comprehensive video sequencing and post-processing features.
Pro Node based modeling support
Pro Keyboard shortcuts
Good keyboard shortcuts for everything. Keep your left hand on the keyboard and your right hand on the mouse.
Pro Very useful for a freelancer
It offers a round solution (it covers many areas and professional fields) for a freelancer, for free, constantly updated, very polished, and allowing high quality results that clients do require. After some learning, it becomes very useful for professional work.
Pro Has a large community
There's a huge community to help you get started immediately.
Pro Coherent and streamlined workflow / internal use logic
The trick with Blender is to get used to its usage philosophy, as it keeps consistent through all the application. Once you get it, every feature or addition is learnt naturally, almost effortlessly.
Pro Very versatile
You don't have to switch between software when you want to do different things. Because modeling, sculpting, composting, video editing etc can all be done in blender.
Pro Generative geometry using nodes


Pro Easy to learn
Cinema 4D is heralded for its approachability. New users are not hindered by lack of familiarity with similar tools.


Pro Clean UI
Customizable floating palettes and configurable view panels let screen space be dedicated to the artwork, not the interface.
Pro Great modeling and animation Software.
It's super easy to learn, and there are lots of tutorials online. What really ticks me off, is that it's always rated below Blender, by Blender fanboys. Sure Blender's UI is way better now, after it's 2.8 release but not better than C4D's. Blender is open source, and has really good 3rd party plugins, and is always being updated which is great.. But it's not better than C4D. Just because Blender is "FREE" doesn't make it a better Software, while again I repeat it is a good Software. C4D is also capable of the same things, and possibly even more. C4d is really underrated. And I don't understand why there wasn't a "YES" under the (3D) section on the list for C4D.
Pro Rendering
Is simple for making good rendering


Pro Includes great tools for animation and motion graphics
Mograph is a set of tools in C4d that speeds up the process of making animations and motion graphics.
Pro Useful content browser
Cinema 4D comes fully-loaded with an extensive library of preset objects, materials and scenes that make it easy to get started with your 3D project. Use this outstanding resource to quickly develop concepts without spending time modeling (or wasting money buying models), or dissect complete scenes created by top C4D artists to develop your own skills. These highly curated libraries are custom-tailored to specific markets, with a wide variety of assets including models, materials and customizable presets.
Pro Sketch & toon
Very flexible toon rendering solution helps you to create amazing 2D cartoon style renders.
Cons
Con Too many possibilities, no unified workflow
The operations are not optimized enough for specific tasks.
Con The physics engine is a bit lagging behind, especially the destruction physics
Con Difficult learning curve
Blender has a history of being unintuitive, but the 2.8 overhaul made the program far easier for beginners to pick up, and changes continue to be made to further improve the experience. However, there is still a learning curve.
Con Not good for Industrial Design because it uses average vertex normals
You can not create a hard surface with a radius continuity degree along a surface using a specific radius value.
Con Vertex normal issues on edges after boolean operations.
After creating a simple boolean operation the vertex normals are broken. A lot of work to fix the issue and you loos surface continuity.
Con Bad vertex normal after boolean operations
Does not handle well polygon intersections. And need tweaking by hand points or adding average vertex normals via modifiers.
Con Does not handle NURBs
Is not capable of real hard surface for industrial design because is not able to reproduce surface continuity degree as a NURBs does and average vertex normal destroy surface radius.
Con Poor particle system
The Blender particle system can at times be a little limiting and finicky (and buggy) to get working. Even if it can get most straight forward jobs done, it is far from the most advanced system, and could benefit largely from advancements.

Con Expensive
Starts at $995.00 with the complete version costing $3,695.00.
Con Doesn't make true Booleans like most other 3D Softwares.
It works in a parent and child structure, so when you subtract one object, from another, it remains there invisible, and can be moved around.
