Role Playing Systems

I've played by post many role playing games for over a decade. My favorite goto system is Big Eyes Small Mouth, because my games tend to feature anime themes, characters, and shows. It's also a fairly flexible system, and while not perfect for digital play as we do on forums, it can be hacked to work.

What role playing system(s) have you used, if you even bother to use one for character balance. Or do you just prefer to role play completely free-form style?