Oh goodness, as one who grew up on the SNES, where do I start?
I LOVE the DKC trilogy, Super Mario World, is.. Yoshi's Story a platformer? Rayman, Klonoa (Door to Phantomile, Lunatea's Veil, Dream Champ Tournament), I'm prrrreettyy sure Crash 3 Warped is a platformer, but I don't know if it's 2.5D... Kirby 64 The Crystal Shards...
That's all at the top of my head. Mainly because I can't remember anything else right now, too many games xD;