Do you RPG? What's your favorite system?

So I tabletop RPG. I have a handful of games my friends run on Saturdays (we cycle through them playing a different one each week), each game is a different system.

BESM, D&D, SLA... Some systems I prefer to others and it got me wondering, what systems do other people prefer. So I pose these questions:

Do you RPG? and if so, what system(s) do you prefer?

I tabletop rpg as well. not as much as i used to, but still play occasionaly. Right now, i just started playing Rifts from palladium. I love the premise of rifts, and the rules arent too hard to learn either.