The best fight i've seen live is Castillo vs Corrales I by a mile. I was out of my seat on numerous occassions. I feel a bit satanic saying it but I still watch Benn vs McClellan at least once a month, another great fight for me is Tito vs Vargas. Hatton vs Tszyu is my all time favourite though, simply because it was such a long time coming, he was the underdog, and was losing a few rounds, so when Tszyu quit I was almost in tears. Hagler Hearns is incredible too.