ok, I may be a bit biased but I dont like to hope for miracles - this is one of Fergie's last years and he will give it his best...
I will point out a few things:
1) Porto may have drawn the game at 2-2 but that was a fluke... MNU had Evans and Oshea in defense which is outright awful... and this was the first leg form which they went out to win away 0-1 in the second.
2)
Bayern were INCREDIBLY lucky to advance - first of all, they scored 1 injury time goal in the first leg to win 2-1 and then headed to the second leg with actual potential to advance... however, MNU absolutely humiliated Bayern in the first half and should have been 4-0 up if not for stupid Rafael... next, he got a very cheap 2 yellows, first one from Van Bommel being typically annoying and then SIX BAYERN PLAYERS crowding the referee after a soft hit on Ribery... and even then, they were outplaying Bayern with 10 MEN!!!
and btw, Bayern are a much better team than Marseille.
3) MNU is welcoming back Valencia who I dont think anyone has mentioned yet - WTF? did you see what he did vs Arsenal AFTER coming back from 4 MONTHS out with injury and BROKEN LEG!!! he is the key to this game but also note Smalling, who people look at as a typical English rook... I actually like him over Ferdinand and you will see why tomorrow...
I think we will see United bring on this line-up...
------------ Van Der Sar -------------
--- Rafael --- Smalling --- Vidic --- Evra ---
------- Scholes ------ Fletcher -----------
-- Valencia ------------------- Giggs------
-------- Rooney --- Chicharito ------
- the defense is good and the mid-field has experience, while Giggs is rested, Valencia is fresh and Chicharito is lethal... if Fergie plays this lineup, they will play unlike seen from them this season IMO...
all in all, I AM NOT WRITING THIS TO DEBATE OR GO AGAINST YOU, I am just pointing out my opinion...
good luck with your pick while I will be on MNU -1