My opinion: Mr. Sandman.
Had your goodnight kiss? Cause he’s about to put you to sleep.
Mr. Sandman can punch an entire brick building down with ONE punch (as seen in the pre-title defense match comic thingy).
Mr. Sandman can take many punches from a man that can knock out a gorilla (little mac).
Mr. Sandman can defeat a man that can overpower a bull (Don Flamenco can i believe).
Mr. Sandman can beat a man that is probably on par with a bull (bald bull).
Mr. Sandman can beat a man that is faster than a 200 mph bullet train (piston honda/hondo).
Mr. Sandman: UNSTOPPABLE
*little mac has entered the chat*