I grew up with the Genesis myself, so I'm pretty much a Sega fanboy. Got SNES later, and enjoyed most of the stuff on that game (will always appreciate SF2 WW and TMNTIV, and all the great 1st party Nintendo stuff). But for that generation, nothing beats all the great Sonic games, the better Samurai Shodown version, the better Jurassic Park, Shinobi 2 & 3, Comix Zone, the better X-Men games, Vectorman, Gunstar Heroes, and of course Streets of Rage 1-3 (shoutout to 2).
And since I loved the music of that era, Genesis had a big win for having a headphone port to listen to Sonic and Yuzo Koshiro music all day. Those were "Beats in My Head"
Good times.