My favorite is mixing the top 2 on your list together, goooood stuff.
I agree about the vanilla and chocolate, they don't compare to banana or strawberry.
I think it would be cool if Biotest could incorporate the flavors of the Metabolic Drive Bars into protein powders. Cookie dough protein powder would rock. Either that or I could just try throwing a Metabolic Drive Bar into the blender... I dunno how that would work