Mark Henry and John Cena would get their shit kicked in. Cena is strong as a bull but not athletic at all. Guy tore his pectoral muscle doing an arm drag for christs sake. Mark Henry is just old, but surprisingly in better shape now than he was a few years ago.
Jack Swagger he was like a 20 time all American. Shawn Michaels sweet chin music, he could take anderson
Yea he'd be my first pick. Terrible pro wrestler, awful on the mic but very athletic for his size. Not to mention, like you said, he's pretty good at actually wrestling.
Other mentions would be Dolph Ziggler, prime Randy Orton and prime Kurt Angle.
The current WHC fought Mirko Cro Cop in MMA and got his head kicked off. He was the dude with the mask.