4e vs 3.5e vs Pathfinder

I hear a lot of things about all three systems, yet I've only played one. Supposedly, 3.5e is "too complex", 4e is for "power gamers" and Pathfinder is basically 3.5e made better. From reading the 4e book, I've kind of formulated my own idea of what I think of it, which really isn't all that great, but I'm willing to give it a shot I suppose.

What I really want to know is what you guys think of the systems. Which would you rather play and why?