For instance, I'm not a huge RVD fan, but I always loved his spike sell of the DDT where he would plant himself vertically into the ground. It always looked devastating and you could totally buy the ensuing pin as the finish. Jeff Hardy planting him at Invasion immediately comes to mind. I remember jumping off the couch when RVD took the same spike bump off an RKO. I also thought Rock's backflip bump off the spear was magic. Shame that he didn't get to take Reigns'.
I hated Scott Hall's stunner sell where he wouldn't drop down to his knees but spring back like he had been hit with a master Jedi force burst. I find it somewhat strange that a lot of people seem to like that one.
And in spite of Austin and Jericho making fun of it on Austin's latest dvd set, I always loved Vince's senior citizen stunner sell, where it looked like he would die upon impact and collapse like a frozen corpse across Steve's shoulder. Oddly enough, it may be my personal favorite stunner "sell" outside of the Rock's.