It all depends on your DS- does he love the "classic" characters (Mickey, Minnie, Goofy, Pluto, Donald)? Does he go more for Lilo and Stitch? Or the Playhouse Disney characters? My DD couldn't care less about the Little Einsteins or JoJo and Goliath, so we don't do the H&V b'fast. She loves Stitch, so we like 'Ohana's b'fast. Mickey is at both Chef Mickeys and 'Ohana, if you want to see him.
Honestly, the characters are the main reason for the character meals- IMO, the food is all pretty similar. So, go for the characters you want to see.