My favorite is . . . Sahrashalsashasha . . . lol. I don't really know his name, but I always end up pronouncing it something like that; it's the village elder guy by the East Palace in Link to the Past. Oh yeah, and that mask shop guy in Majora's Mask is freakin' creapy.
I don't particularly like either of those characters, but they're funny to me. I don't really know anything terribly good about any of the characters. Maybe that one fairy chick in Ocarina of Time. What's her name? It's something like Sarah, but that's not it. I don't know.