Either Buffy or Riddick would utterly sodomise him. Slayers (especially Buffy) have feats like breaking metal, casually manhandling beings with super strength, tanking falls from multi-story buildings, getting hit by cars etc... and we all know what Riddick is capable of. No way in hell is Frank beating either of those two.
__________________ Never take life seriously. Nobody gets out alive anyway.
Riddick had trouble fighting Batista's character IIRC. Means he's susceptible to being beat by humans. I don't think he's ever faced anyone as skilled as Frank.
Eh, he was never in any serious danger IMO. Bautista's character briefly got the upperhand in their fight, but then Riddick got serious and fairly easily overpowered him (despite the size difference) and killed him shortly afterwards.
Riddick was landing hits on the Lord Marshal and he was actually doing ok during some parts of that fight. If you watch the fight, he had trouble overall because the Lord Marshal kept using his superspeed to attack him from his blindspots. When Riddick got attacked from the front he held his own fairly well. I don't see Frank doing even remotely as well.
__________________ Never take life seriously. Nobody gets out alive anyway.