The Dino.

Sorry Jeff but I would have to side with the T to the Rex.

Seeing as a T-Rex is nothing but a giant eating machine, Jeff would last 1 second.

Jeff....with a rocket launcher....might win.

Jeff can use Self Destruct, if nothing else. Does that count as a win for him if the dinosaur dies and he presumably just passes out?
(Referencing his 5/5 review picture, btw.)

I can only quote Claude on this one.

Jeff would win if he uses the awesomeness of the Jazz Hands.

Jeff's cool and all, but I'm sure the T-Rex would bite his head clean off. Sorry Jeff, I'm sure you'd give us a great spectacle, though.

Sorry Jeff, but the dino could win in less than a second.

Seeing how a T-Rex has a brain the size of a pea, I doubt that Jeff's greatest weapon (his disarming sense of humor) would not save him.

Jeff has a chocotaco.The winner is obvious.

Jeff wouldn't kill the dinosaur.  It's quite obvious in that picture that he is in fact the bait to lure the T.Rex into Ryan, Brad, Vinny, and Drew's cleverly disguised trap of makeshift bamboo spears covered in Amazonian fire ants encased in peanut butter...

How many Jeffs would it take  to beat the T-Rex? Someone run that D&D stat calculator they used on the bombcast.

Jeff would just throw a giant bomb into its mouth and *boom*.

I think the answer here is pretty obvious... the winner would definitely be a Doritos delivery truck.