'Smokin' Bert Cooper had a good one!

Basically anyone who uses a shoulder roll will eventually HAVE to counter the right cross with an uppercut: Toney, Mayweather, Holyfield they all have very useful uppercuts maybe not the flashiest but they get the job done.

Foreman has been mentioned a couple times, he put Cooney to sleep with an uppercut.

Tyson used his well both left and right handed.