Looking back the SNES seemed to age better, but there was a lot going on in the Genesis era. A lot of people forget that Phantasy Star, Shining Force, and Warsong/Langrisser, all made their homes on the Genesis. The mutliplats were almost always better on the SNES, but exclusives tended to be on par between the Genesis and SNES. Each had their strong series even if they aren't as well known now.
Sega just sucks with marketing nowdays and let its great stable of series go to shit.
There was also MUSHA, Thunder Force and a lot of other great shumps that got a US release only on the Genesis. Also via converter granted but the genesis was one of the first consoles to offer backwards compatibility for the Sega Master System.
But all that aside. At the end of the Day the SNES games and system just held up better and are less painful to look at on a modern TV while most of Genesis greats lay forgotten, I guess in that sense after all these years the SNES won the 16 bit wars. War doesn't determine who is right..only who is left after all.