jdrakeh
Front Range Warlock
I voted "A system I don't like drains a lot fun out of a game." While I'd like to say that a good group can mitigate a system that I don't like, I've found that years of actual play has proven the contrary. If a system is too math heavy (e.g., Fringweworthy) or otherwise unintuitive (e.g., Burning Wheel) for my tastes, no matter how much I enjoy the company of the other players, the game experience does suffer.