Rey Mysterio won't be around forever so perhaps there will be a new "Rey" that WWE will push to the top. I'd rather pick Evan Bourne instead of Kaval to be honest. He's younger, and he has more marketable look, his movesets are also very crowds pleasing. And overall i prefer Bourne anyway. Kaval is a total beast in the ring despite his size and his offenses are very stiff, so an underdog status doesn't really suit him imo, even though WWE seems to be leaning towards that direction for him at the moment. How about you?