Barring takedown, even if it were purely striking Pacman can unleash some serious combos and power for his size. Watch his training sessions. Within 10-20 minutes he STILL lands with the same amount of velocity. That is an elite pro fighter who does not tire out. After one minute most people begin to fade out.
My first instincts was Pacman and I'll probably go with em even though Jose has wicked leg kicks. Pacman is probably quick enough to dodge or eat one to land several combos in exchange. His reflexes are twice as fast as a regular MMA fighter.
Would be interesting...
Marcus Aurelius: Tell me again, Maximus, why are we here?
Maximus: For the glory of the Empire, sire.
Baked, not fried... the healthy choice.