SNES, by miles and miles and miles and miles.................

Sega Mega Drive/Genesis for me.....aahhh...good times good times

GameBoy all the way Portable gaming FTW

Easily Sega Megadrive.

Technically:

1) Neo Geo - Despite the tiny RAM, great bandwidth to more than compensate for this.

2) Amiga CD32 - The Amiga 1000 and the cheap A500 were revolutionary, sadly the A1200 was a minor upgrade, the CD32 was technically almost just an A1200 with CDROM drive in console casing.

3) Snes - Nice capabilities considering entry pricing for its time.

Games wise:

1) Neo Geo - Basically arcade quality gaming. Sadly not released outside of Japan. Even if it would have sold badly due to high entry pricing over here, I would have loved to own one.

2) Snes - Basically due to Super Mario World, for me no other game including the other Snes games came close.

3) Amiga CD32 - Sadly suffering from a premature death and lots of Amiga 500 games remastered unchanged for CD, there were good games taking advantage of the hardware to some extend like Alien Breed: Tower Assualt, Banshee, Super Stardust HD, etc.

SNES or the Sega would be my picks I suppose. But most likely SNES.

SNES - by a million miles

Mario Kart , Zelda , Pilotwings , MarioWorld , Yoshi, StarFox, Street Fighter

I could go on.....

I pity the modern day gamers who never experienced the SNES in its heyday.

Super NES. :3

I didn't know what a Genesis was back then...and honestly, I don't care. I have one now but I hardly touch it. SNES FTW

SNES

SNES with out a doubt but the Mega Drive a close second.