Silva-Sonnen I. It had that same feeling of seeing a champion looking beatable for the first time but it also ended with a spectacular come from behind finish.
That was great.
Some of my choices are:
Coleman vs. Severn was amazing because it was the first fight for an actual UFC Title and there was so much anticipation going into the match seeing two such legendary wrestlers fight each other!
Coleman vs Maurice Smith - people thought Coleman was invincible and there was no way a kickboxer could withstand Coleman's ground and pound attack whichat the time included headbutts.
Couture vs. Maurice Smith - it was great to see a wrestler win the title back and it was the start of Couture's first of many title reigns.
Couture vs. Tito Ortiz - the fight where Randy literally spanked Tito and Tito was crying.
Matt Hughes vs. Carlos Newton - one of the strangest and interesting endings to a fight ever and the start of Matt's 820 day title reign!
Dan Henderson vs. The Axe Murderer Wanderlei Silva - seeing Henderson knocking out Silva, being the man to finally stop Silva's long reign as champion was very exciting.
Rampage vs. Liddell - seeing Rampage be the guy to finally dethrone Chuck was awesome.
Couture vs. Liddell - a trilogy of fights - I don't know which was the best, maybe the first where Randy won and if not, then the second fight where Liddell won.
Brock vs. Carwin - such an amazing comeback and a testament to how tough Brock was.
Brock vs. Mir II - the importance of main eventing UFC 100 really put a lot of tension on the line and there was the back story of Mir defeating Brock in Brock's first UFC fight despite Brock dominating the vast majority of that fight. Brock's post fight interview was the most fun, most controversial post-fight interview ever where he vowed to have a Coors Light despite Bud Light Sponsoring the event and also saying he "might just get on top of my wife later on tonight."
Shamrock vs. Ortiz I - the build-up to this was amazing and it delivered.
Finally, although it wasn't a fight for The UFC Title it was a fight for the winner of the second "Ultimate Ultimate" tournament - Tank Abbott vs. Don Frye - it started out with Tank making a mess of Frye's face with some hard punches and finished when Tank slipped and Frye seized the moment by applying a choke for the submission. I don't know if a fight like last night can really match the kind of drama that is built up by watching a guy make his way through a night long tournament and have to defeat three fighters in that one night to become the champion.