@Arkandel said:
So how do you know if a system is good? People use it on their own because it improves their gameplay. How do you know if a system is not? People don't use it unless they are forced to, and stop using it when they aren't.
That's the only benchmark that matters. A great super-fun mechanic that's unused is neither, no matter how it looks on paper.
This is a fallacy, because some people will use it when they aren't forced and others won't.
Your claim is tantamount to saying, "a television show is good if lots of people watch it without being made to". At which point we have to admit that every television show that died because of a lack of ratings was objectively bad.
I use the nWoD system without being forced to. I like it. I think it's a good system that, if used correctly, helps further, guide, and incentivize not only roleplay in general, but the content of the roleplay that the player wants.
So I disagree with this notion that "it's good if people use it without being forced". If anything, it's easy if they do, and I could argue that, but won't.
I don't like FATE; I find its Aspects system clumsy and not to my liking. Does that make it a bad system? No. It just makes it a system I, personally, find not entirely to my liking.