Two fights come to mind.

Lewis - Klitchko, for obvious reasons. A real cliffhanger at the bar. Lewis is a Canadian Icon, regardless of what happened after the Olympics.

Hopkins - Trinidad - Aside from 9/11, most of us were starting to get quite impressed by Hopkins, and everything about Trinidad made you nervous if you don't like him. Me. As the fight unravelled, we're waiting for the titobombs to start dropping, and the guy next to me at the bar is saying "Damn, Hopkins is fighting a smart fight" And it went on that way until it was over.

Honorable mention: de la Hoya - Mosely I: Everybody knew de la Hoya, not everybody knew Mosely. I had never seen him. It was a great fight. The guy sitting next to me at the bar is saying "Damn, but Mosely is fast". Shane Mosley really impressed me that fight.