#8 Champ Chris Jericho def. William Regal (WrestleMania x-Seven, 2001)

While this wasn’t an extraordinary match by any means, it was the opening match of what most people have deemed not only the best WrestleMania of all time but the best PPV event of all time.
The crowd was on fire for Jericho and they had a quick, fun match to get the Houston, Texas audience even more riled up than they already were for this massive event. It was also the culmination of an incredibly enjoyable and often funny storyline/feud between the two men, as William Regal was still the Commissioner of the WWF at the time.
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They did go on to have a couple more matches, including the infamous Duchess of Queensbury Rules match the following month at Backlash, which saw Regal win (not the title, though, as Triple H had recently taken in from Jericho) by changing the rules to fit whatever he wanted to do.
Interestingly enough, a few weeks later on the UK-only PPV Insurrextion, they had a rematch of the DoQ Rules match, and Jericho won. Usually, when they go to England, the Englishmen get to win, even if they’re bad guys, because the crowd is so excited to see them.