Griffons are yet another magical beast, but they're surprisingly useful. Built-in Pounce, good physical stats, large size (though admittedly without reach), two free rake attacks on every charge, a fast fly speed... Not bad at all.
However, a LA seems out of the question. Not only will the party casters be summoning celestial griffo's in two levels, their lack of reach and dependency on mouthpick weapons don't particularly help either. That leaves a simple question: +0 or -0?
I think +0 may actually be in order here. Griffons are spared from the obligatory barbarian level so many melee builds are forced to take, and their damage output is more than reasonable. Feedback is welcome and all that jazz.
Next time: grimlocks, followed by guardinals. These should be more interesting to rate.