Its hard, when one team smashes another, sometimes its because the other team are just crap, sometimes its because one team is so good it makes the other team look or play crap, sometimes both teams are excellent and one team is just that much better. Problem being its hard to distinguish between them sometimes. Here, I think Barca were poor AND Bayern were fantastic, but maybe not quite as brilliant as they seemed due to how poor Barca were.
But again this is a problem with Messi power, he shouldn't have started, if he did he should have been subbed, but the manager was too scared to do so, that is such a HUGE issue for that team, for all those complaining about Lampard/Terry, did Benitez or AVB play them when completely unfit and not sub them, not even close.
Sanchez is for me, very poor getting the ball from say the half way line up to the box and creating a goal, play him in behind without much to do, or use him in a one-two like the Fabregas/Sanchez 5 goal combo the other week, thats where he's good. Fabregas isn't very fast, and Sanchez's pace helped create space. Sanchez needs to play that lone striker role pulling defenders all over the place, creating space for midfielders to make goals. WIth Messi on Sanchez gets shoved out wide and Iniesta, Pedro and Xavi look mostly for Messi, which was a complete waste in this game.
Pedro is also someone I don't rate as a good build up player, but someone you can use in the box or to pull a defence around. But they lacked the player to use those two today. They had three across the front who were completely incapable of breaking down a defence or going around it to create chances for others, completely the wrong setup and refusal to change it around for fear of upsetting Messi has almost certainly now cost them the overall tie.