It's a really tough call.
HHH/Austin vs Benoit/Jericho might be my favourite. That match had everything. Technical wrestling, counter wrestling, brawling, great selling, great chemistry, great psychology, a great crowd, four of the best workers ever, a table, a sledgehammer, an underdog victory, a title change, storyline advancement. Action so fast and hard that HHH's thigh exploded. Everyone should go out of their way to see this match.
HHH/Jericho from 2000 when Jericho briefly won the title is noteworthy just for the energy. Every single person in the building wanted Jericho to take it, and the place exploded when he did.
Those are my two standouts, and then there are other noteworthy ones like Bulldog/Owen, Bret/123 Kid, Taker/Hardy, Benoit/HHH, Flair/Perfect, Cena/Michaels, Rock/Mankind or TLC 3.