When comparing PlayMaker vs NGUI , the Slant community recommends NGUI for most people. In the question“What are the best Unity3D plug-ins?” NGUI is ranked 1st while PlayMaker is ranked 3rd. The most important reason people chose NGUI is:
NGUI is a great tool if you need to create a complex and scalable interface quickly. Besides the ease of use, it provides stable performance, with no hidden problems to set you back.
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Pros
Pro Easy to use
You'll need to put more time in learning Unity + Playmaker compared to something like GameSalad. But once get hang of it and familiarize yourself with it's possibilities. It's quite easy to use.
Pro Elegant state-based visual scripting
Instead of a single "if this then that" event list which can become very cluttered beyond the most basic behaviors, PlayMaker gives each object a list of states where only certain events are triggered, and performing an action also changes state.
This allows for a clean, simple visual representation which helps break complex logical structures into smaller pieces, making them easier to understand.
Pro Powerful
It basically can do same things as scripting in Unity.
Pro Third party plugins support
A lot of third party plugins have support for Playmaker. Playmaker team also invest time to add support for a lot of third party plugins.
Pro Works smoothly
NGUI is a great tool if you need to create a complex and scalable interface quickly. Besides the ease of use, it provides stable performance, with no hidden problems to set you back.
Cons
Con Limited tutorials
There are not a lot videos with Playmaker tutorials. Official text tutorials are also quite limited. Even not every action has a description on an official wiki.