Started with Teenage Mutant Ninja Turtles, followed with Ninjas and Superspies, and then descended into the mixed-bag that is Rifts. Played those for a little while but, being elected as the GM / DM for the group, I found that I detested the use of dice. I felt they slowed the story down, put all the session's focus on these long-ass battles that were oftentimes inconsequential -- your players vs. bandits or whatever, just so you could introduce another plot-point that would pay off later.
Eventually started making up my own games with my friends and dropped the dice altogether. What I say goes. The stories are far better and deeper, the action tends to be more freeform and creative -- overall, a better way of handling it, IMO. I don't begrudge anyone their positive experiences with the dice games, but I could never go back to playing them. We tried briefly about six months ago, even trying out D&D for the first time. We did everything traditionally, except I added in some special things that everyone agreed made the system work better. Still didn't get into it as well, so we reverted back to our style.