my vote goes to the forbidden(shani). it was a very cool gundam, scythe and beam deflectors, what more could you ask for? next choice would be abyss, because of the fact that it could be godly underwater. last, but not least, raider, just because the chain ball is able to take out something.

edit:and for the record, shani was cool, auel was too, and kuruto was a nutcase(in a cool way).