Shockingly, i just want it to be a good game and hope whoever it is, the best team that plays the best football wins. If Man U go there and do a Chelsea, and Barca steal it with a late goal but at least "tried" to play football i'd be happy Barca won. If Utd go there and play their best football and Barca steal a goal through a dive getting a penalty i'll be angry they won, etc, etc.
Some combination of good football, sportsmanship, attitude and entertainment, if the team that has the best combination of those things wins, i'm happy, no matter which team it actually is.
Saying that Barca have a big advantage with Alves out, as he's the most irritatingly pathetic cheating tit i've seen this year in the champs league, every single game attempting to get players sent off with pathetic diving, aswell as lots of fouling himself, not to mention he lacks any real footballing ability, 1 good cross in 50 doesn't reek of talent to me.
Had he been playing i'd probably be happy to see barca lose, if anyone thinks Ronaldo is bad they haven't seen Alves. Ronaldo DOES get hacked a lot and gets angry to not get decisions and does go down easily, Alves constantly ignores the ball runs into players and falls over, spends half an hour a game harranging a ref, he's just a tit. Drogba, Alves and Gerrard are what i'd call the worst cheats at top teams, they'll create a foul out of absolutely nothing with no provocation even in a game they are winning or against a team that has no chance.