Oh I have too many to name just ONE.
I have an undying love for Chrono Trigger for being one of the most perfect and timeless RPG's I have ever played...it's just so damn awesome.
Then there is Final Fantasy 6(3), being the peak of the series and having the best story and characters of the numerical FF's. FF7 owes a lot to 6 but go figure it's rather ungrateful and no one has the right to call themselves an FF fan without playing THIS game.
Oh then there is Bahamut Lagoon, a lost gem of an SRPG the had a kick ass story and gameplay, why oh WHY was it never released in North America. You need only look up my review to see how awesome a game it was.
Link to the Past is another game way up there. ALL the new Zelda's owe LtP big time, still is one of the best damn Zelda games ever.
Super fucking Metroid, now this is the definition of polish. The game was simply too awesome and had a level of polish that put's most of today's games and developers to shame. Valve couldn't do better no matter how hard they freaking tried.
Mega Man X...um...wait...how many times have I beat this game?
If I was locked in a room with the option of only 1 fighting game, well you know what game I am talking about. Killer Instinct, you know how awesome this game is? So awesome I am still waiting for my Killer Fucking Instinct 3!!! God dammit RARE give me KI 3!!!
There are plenty more games i can go on and on about, but those big 7 are games I will never forget and will enjoy until I die. The SNES is only rivaled by the PS2 in it's pure gaming awesomeness.