I like so many different games, and they're all so good...can't choose a favourite!
But among them would be:
Legend of Zelda: Ocarina of Time
Castlevania: Symphony of the Night
Castlevania Chronicles
The King of Fighters '94~2003 (excluding 2k1 and 2k2 because they suckzorz)
Legend of Zelda: Twilight Princess
Fire Emblem 7~9 (haven't played RD yet)
Breath of Fire III...
...and tons more. I've played too many games, it seems.