UFC 58 was fun. Fisher vs Stout was the best fight on the card, and a really, really good fight. Marquardt vs Doerksen was good stuff as well.
UFC 59 was another solid show that featured Sylvia vs AA 2(Fun, fun fight), Karo being awesome, Sherk showing his hands, and a fun(Albeit overrated) Griffin vs Ortiz fight.
UFC 40 had a bit of everything. From a good sub, to a great KO, to Ken getting his face bashed in. That was the best Ortiz has ever looked. Also, Weir vs Miller was great stuff. AA chopped down Freeman as well. Yea, that show rules.
UFC 52 had Trigg vs Hughes 2, Miller vs GSP, Liddell vs Couture 2, & Doerksen vs Cote. Awesome show.