Some of my faves have been mentioned, so I'll try and throw out a few different ones rather than repeating.
Eddy Guerrero vs Rey Mysterio Jr. - Halloween Havoc 98
Dangerous Alliance vs Sting's Squadron - War Games
Owen Hart vs Bret Hart - Wrestlemania 10
Undertaker vs Edge - HIAC - Summerslam 2008
Undertaker vs Mankind - Boiler Room Brawl - Summerslam 96
Cactus Jack vs Triple H - Street Fight - Royal Rumble 2000
Rick Rude vs Ricky Steamboat - 30 Min Iron Man - Beach Blast 92
Public Enemy vs The Funk Brothers - Barbed wire match - ECW 94 (cant remember show name) - Not particularly a great match, just iconic for the chair throwing incident.
Bret Hart vs Bulldog - Summerslam 92
The Great Sasuke, Gran Hamada, Masato Yakushiji vs Taka Michinoku, Terry Boy and Dick Togo - Barely Legal 97
Steve Austin vs Bret Hart - WM 13
This is one of my all time favs, but for the following reasons;
- Being a massive Bret and Bulldog mark
- Nostalgia ( I remember watching a tape of this following day when i was 8)
- being british