I second Super Mario RPG. You can check out my review of it on the frontsite if you'd like to learn more.

I also have reviews of Super Mario Brothers, Luigi's Mansion, The Legend of Zelda: Ocarina of Time, Metroid Fusion, and Metroid Prime if you're interested in any of those. Granted, the Mario Brothers review is more of a compare and contrast with the first Sonic game, but still.

Yes, I'm shamelessly self promoting myself.