The Saturn is my favorite gaming system. Its not my favorite due to what I own, or the games it has, or the graphics or sound or style, its my favorite due to the fact that I've had the most fun, joy, and happiness come out of that 32bit forgotten box.
I've been revising my game collection and trying to reduce everything down to around 10 games per system... With my sega stuff, I'm struggling to choose which 30 games per system are worthy of keeping... With my saturn, I'm still around 50.
Metal Black (my favorite horz shmup EVER)
HotD (although lately i've had to play it with the d-pad off of a controller)
insert large list here...
I can't make a top picks list, its my favorite system. I could just list my (ridiculous) library and say that those are my top picks.