I think when he became the youngest heavyweight champion when he destroyed Berbick (RIP). Or when he scared Spinks to death and destroyed him.
Many favorite Tyson moments.
Happy Birthday Mike.
I would say Wlad. Both have great resumes though. Now before anyone call me an idiot or a Klitschko fanboy, I'm talking about in this era, they've fought and beat the best of their own era. You can't really ask for more from a fighter.
I'm picking Rhodes to KO Canelo. Rhodes got good power, plus he's a great counter puncher. I think Rhodes will catch him with a counter punch and KO him.