Yea, it's not that he's a wookiee, or even so much that he's a Chewy clone, for me either. I just don't have much of a use for him. As a fighter, sure he packs a wallop, but, really, you have three jedi to choose from over him. I'll sacrifice a little less strength for a lot more force powers any day. Even if you don't want to use a jedi, you've got Canderous, and I rarely notice any major differences in combat using him as opposed to Zaalbar.
Even as a character, Zaalbar is just too shallow for me to really care about him. The only time any real development occurs with him is on Kashyyyk. I'd much rather take any other character...well..besides T3, just for the joy of character development.