I thought of mine the second I read the thread title.
1997 Stone Cold Steve Austin vs CM Punk at the height of his run as the cult leader of the Straight Edge Society.
This, for me, is about the build up just as much as the match. First of all, you have Stone Cold at the top of his game, promo wise. When he first started becoming a prominent talker in the WWF in '96, he was certainly good, but still a bit choppy. After he became champion, he was so comfortable that it seemed a bit too slick at times with too many catchphrases and pandering to the crowd(Keep in mind I still found him great in both of these scenarios.) The "What?!" era was just total BS that ruined most every promo anyone had to spit out for six year following it. But '97 Steve Austin was tremendous. The promo he cut about Owen on his ranch in Texas(where he talked about how much he drank when he was out with his neck injury, hint hint) was one of the great shoot/work interviews Jim Ross did at that time. Him throwing Rock's IC title in a river was one of my favorite things I've ever seen on Monday Night Raw. And him running crazy over the WWF (breaking people's legs with steel chairs and driving pick up trucks into the arena) was the kind of edge that made the Monday Night Wars so legendary. To say the least, this was the best time in his career. Not to mention it was around this time that he had his greatest match, that being the submission match against Bret at WM 13.
Now on to CM Punk. Before the WWE decided to bury The Straight Edge Society under the girth of Big Show's untalented fist, Punk was cutting legendary promos. He was building incredible heat without needing the crutches (cursing, sexual implications, etc) that the Attitude Era allowed. And he was creepy, too. Much more creepy than a lot of the cartoonish things Undertaker has done in his career. That is, because Punk felt real when he was doing them. Only he could take singing happy birthday to Rey's daughter and make it engaging and antagonistic rather than leave the viewer rolling their eyes. He was like a pro wrestling version of Charles Manson. Hell, Punk was the only good thing about the 900th episode of Raw where he was, surprise surprise, cutting a promo about Steve Austin.
Not to mention how the story writes itself. Notorious beer drinker who has been arrested for beating his wife while intoxicated vs. a life long follower of a belief that drinking, drugs, etc is wrong. Imagine how personal the build up could become. Imagine the heat Punk would get for mentioning how adversely alcohol has affected Stone Cold's career. Imagine how much more heat Punk would get for trying to convince Stone Cold how easy it would be for him to surrender his pride and just embrace the Straight Edge Society (he is, in fact, already bald.) It would make much more sense than Punk trying to acquire Rey's name recognition for the greater good, running away from a delusional Kane or, worst of all, jobbing to Big Show for almost no reason at all.
That, or have the long awaited Duke the Dumpster Droese vs. Zack Rider match I've always dreamed of.