I don't see the character development attraction of Link at all. He seems to be a cookie cutter hero riding on only the merits of appearing badass and having fun games. So he's not my favorite character, mainly because he's two dimensional.
Link is a classic. Sure he's kind of 2D, but then again he started out as 2D on the original Nintendo. His games are cool and he's a pimp (just look at the women? Malon, Zelda, Saria, Ruto, and that Nabooru lady even hits on him).
Crono isn't so much bigger of a character there.