Conor vs Aldo, not in terms of outcome, but in terms of i just wanted to see at least 3 rounds, wanted to see what Aldo could of done to a gassed Conor, or if Conor could still pull of the win.
Also Bj Penn vs Edgar #1, i feel like Edgars style is just so hard to beat, and i think Penn was so fun to watch, lot of other match ups for him but instead he ended up fighting Edgar in a rematch, and then for a third time late in his career.
Also almost all of Cro Cops UFC fights, would of loved to see him younger a few years and with that killer instinct in his eyes.