If you haven't played Chrono Trigger or Tales of Phantasia yet, it's almost guaranteed you will love those SNES games. Still some of my favorite games, along with FFVI (my second favorite game after Chrono Trigger), FFVIII, FFVII, and FFX (PS1 and PS2 games). Nearly all the Final Fantasy games are worth playing, though. Even if you prefer top-down you will probably like them if story, gameplay, music, etc matter more to you than whether it's 3D or not.
The Golden Sun games were also really good. Very SNES-like RPGs.