Which ones make you go "That's what you get!"
At the top of my list, I'd have to say during X-Men: Omega, the end of Age Of Apocalypse, when Nate and Magneto lay a beatdown on Apocalypse, culminating in him getting ripped in two.
There was also the start of Marvel Knights: Spider-Man, when Spidey beats the Green Goblin by slamming a mailbox into the back of his head. Just because it was the first time Norman Osborn went to jail in 40 years.
You guys?