I heartily disagree. The main argument Barrera supporters seem to have is that he landed about 6 or 7 more punches over the course of 12 rounds and "look at Marquez's face!". The second argument isn't really something I'd expect to hear from knowledgable boxing fans. A sharp jab here and there can bust open an opponents face.

You say you would've scored it a draw? What rounds did you give to MAB? Did you actually score the fight or did it just "feel" like a close fight?
O.K. I'll throw out the compubox factor and I'll even throw out the swelling issue on Marquez's face. Everyone has different dermal makeup and different bone structure which plays a huge role in how they respond to landed punches.
I never said that I would've scored the fight a draw...at least not to my recollection. I did say that I could have walked away from the fight a bit easier if it would have been scored a draw. It's a slippery road into a dark hole when you try to score these fights. My card was similar to Ledermann's, but I had Barrera taking the 12th round and winning by a score of 115-113. Honestly, I think that's a fair score.
Since your on the topic of Barrera proponents making silly arguments, I'd love to hear your reasoning behind how you can justify a win for Marquez. If you had the fight going to Marquez by 1 or 2 rounds, it would be an exercise in futility to disagree with you unless we were both in the same room with scorecards and arguing the merits of our scoring after each round.
I like Marquez alot. He showed me what he had when he came back from what I thought was going to be an early night against Pacquiao. He's a crafty and highly skilled SMART boxer. I just don't think he done enough to get the nod. But I must admit that the most contentious rounds could have gone either way.