1. Wrestlemania X-Seven: Obvious number 1. Great main event, plus other top tier matches were great (Taker/HHH, Benoit, Angle, Shane/Vince, TLC Match) and the undercard was awesome aswell (Jericho/Regal, Eddie/Test, Raven/Kane/Show, APA & Tazz/RTC), and it had good rest matches (Gimmick battle royal and Chyna/Ivory), although Chyna/Ivory had a great stroyline attached to it, so it being a squash isnt bad, and the gimmick battle royal was fun. All around just a perfectly paced Mania.
2. Wrestlemania 19: This one is a very close second, very close. Had a whole lot of main event matches (Angle/Lesnar, Rock/Austin, Hogan/Vince, Booker/HHH, and HBK/Jericho) all of which were very entertaining. I wouldnt be opposed to anyone ranking this number one either as this one is also simply phenomenal. Undercard was great to (Rey/M.Hardy, 3 Way Tag Title match, Womens Title, Taker/Show & A-Train). I think the undercard for WM17 is what makes it better than this one, although the Womens Title match was really good, as were the other matches, its just comparing the 2, WM17 takes it. All these matches got a good amount of match time aswell, which help it be a great show.
3. Wrestlemania 14: This is another great Mania, coming up short to the other 2. Great main event, with one of the best build up. Also on this show was Kane/Taker, which is one of the best storylines of all time, with a great match. The Dumpster match was really entertaining aswell, and put NAO on the map. Had a fun battle royal to start the show, Light Heavyweight bout was exciting, HHH/Owen was a solid match aswell, Mero & Sable/Goldust & Luna was decent also and paced out the show nicely, and Rock/Shamrock had a good feud going into it, but the match didnt deliver having it go for only about 5 minutes, and end by DQ, but it continued the feud and wasnt a DUD or anything so it still makes it a great show.
Honorable Mentions: Wrestlemania 21, Wrestlemania 24, Wrestlemania 20, Wrestlemania 3