I'm going to include some of my favorite promos that are not listed here.
David Schultz cuts a promo on Hulk Hogan that almost makes Mean Gene break character:
I also love Macho Man's 2 promos that have to do with coffee in some way: and
When it comes to modern wrestling this promo is one of the best:
RE: The Art of Promos: Analyzing Some of the Greatest Promos in Wrestling History and What Makes Them So Effective