in defense of the Genesis being top 3:
Castlevania Bloodlines
Contra Hard Corps
Dr Robotnik's Mean Bean Machine
Earthworm Jim
Gunstar Heroes
Lightening Force
Mega Turrican
MUSHA
Phantasy Star IV
Rocket Knight Adventures
Shining Force 1 and 2
Shinobi III
Sonic 1-3+K
Streets of Rage 2 and 3
TMNT The Hyperstone Heist
Vectorman
all top notch games! the Genesis gets underrated because of how good the SNES was but those two consoles were the best 1-2 combo of any generation
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http://www.youtube.com/watch?v=npHDxSvwCE0