Intellivision - Burger Time

NES - Mega Man 3
SNES - Star Fox
N64 - WCW vs NWO & Waverace

Sega Master System - Alex Kidd in Miracle World
Sega Genesis - NHL 94 & Sonic 2
Sega CD (lol) - Adventure of Willy Beamish
32X (LOL) - Doom
Saturn (smh) - Panzer Dragoon (DOPE game for a flawed system)
Dreamcast - underrated system. Virtua Tennis is one of the greatest MPG of all time. Doubles matches legit ended at least 2 friendships in the dorms. NBA2K was close behind. Import Marvel vs Capcom was awesome. Shenmue was incredible. If i had to pick one its VT.

XBOX - March Madness 05 and MVP Baseball. The last great games for those 2 sports.
360 - Mass Effect Trilogy

All that said, NCAA Football and NHL Hockey are my 2 favorite games for every system every year. NHL 94 got special mention for the jump in made from NHLPA 93.