For me the team I think can go all the way are either Milan or Barcelona, probably Milan more so because they have so much depth in attack and midfield than other sides with stars like Rivaldo, Inzaghi, Pirlo, Maldini, Nesta, Ambrosini, Gattuso, Tommasson, Schevchenko I could go on but I won't as its a very long list of international superstars.
Possible finalists I think will be these two sides as they both have had excellent records in this competition so far this season, Barcelona more so since they are undefeated in this competition.