I agree with Coco, Wrestlemania 1-16 aren't great pay per views by any means. You might have a couple good matches, but for the most part, the majority of these pay per views are forgettable.
Onto Wrestlemania 20.
Agree with the majority, a ton of unnecessary filler throughout this pay per view. I get the WWE trying to get everyone on the card, but it ultimately takes away from the overall quality of the show.
Cena vs. Big Show rocked. It's amazing how much the Northeast crowd sucked Cena's penis, but turn on him within a year.
Evolution vs. The Rock N Sock Connection was phenomenal. The interaction between Rock and Flair was beyond fantastic.
Jericho vs. Christian was beyond a doubt my favorite match of the night. These two have amazing chemistry, and the Trish heel turn at the end was beyond awesome. Genuine WTF moment.
Lesnar vs. Goldberg is my guilty pleasure match. I absolutely love the fact that Lesnar sent out a giant FU to the Smarky MSG crowd. The same people that sucked Lesnar's cock 1 1/2 years earlier at either Summerslam or Survivor Series were crying like babies that Lesnar was leaving. Lesnar played that crowd like a fiddle, and gave them what they deserved.
Angle vs. Guerrero was a solid match. Not as great as revisionist history has made it, but solid nonetheless.
Undertaker vs. Kane was beyond underwhelming, but the sick pop Paul Bearer received and "Undertaker" chants more then made up for it.
I absolutely despise Triple Threat matches, and the main event was no exception. Shawn Michaels should have been nowhere near this match, but that's the way the WWE political machine worked. It was satisfying for Benoit to win, and the moment at the end was worth it at the time.
I thought it was a pretty decent show. Not one of the best, but certainly top half.