I'll give 1 in no order...
The Undertaker
Hulk Hogan
Bret Hart
Shawn Michaels
The Rock
Macho Man
Roddy Piper
Steve Austin
Ultimate Warrior
Mick Foley
Edit: Mick is my favourite wrestler, but objectively speaking I may have to remove him, I love his match with Edge, probably more than any Triple H Mania match but Triple H had some good matches with Sting, Taker and others so may have to reluctantly give him the nod instead when it comes to this question.
Some honorable mentions:
Owen Hart, specifically for the incredible match with Bret, that's 1 of the greatest matches have ever seen.
Razor Ramon, ladder match with Shawn.
Kurt Angle, especially for the bad ass match with Brock
John Cena, respect where it's due, his first match with Rock was superb in particular.
Edge, the ladder matches and the Mick Foley classic match.
Vince McMahon, creator and has got his ass kicked in some memorable matches like vs Shawn.
Ric Flair, retirement match was a big deal and the Savage match was epic.
Roman Reigns, main evented mad Mania's and far from finished career wise.
Brock Lesnar, Kurt Angle match was a classic.