1. Dragon Warrior IV - The best RPG released for the system as far as I'm concerned. Of course that it came out late enough to have been an early SNES release is no surprise. A last hurrah for the NES.
2. Legend of Zelda - The original open world exploration adevtnure game. Simple, and immersive the game was all about the hidden secrets and you just felt smarter for having played it.
3. Crystalis - The only reason I rate this higher than Star Tropics is that it's not as hard. A great action RPG with solid story, like DW4 it really felt more like a 16bit adventure.
4. Star Tropics - Damn game was hard. :/
5. Princess Tomato in the Salad Kingdom - Hilarious.
6. Ultima Exodus - old school dungeon dwelving and level grinding. What's not to appreciate here?
7. Magic of Scheherazade - I'm a sucker for time traveling games. Like Chrono Trigger, and DW7 I enjoyed this game simply because I could warp back and forth between generations. That, and it was Arabian themed.
8. Dragon Warrior - The original. Love it for nostalgia's sake.
9. Legend of the Ghost Lion - A Dragon Warrior clone with a female hero. Excellent character portraits and creature sprites. Not a deep game but it was fun, I recall it having some nice puzzles too.
10. Solstice - OK a stretch to call this an RPG. But a really good dungeon puzzler in the same vein as ICO, Lightcrusader, & The Immortal.