Fact remains that beating teams like Bayern, Lyon (however off form they may be) in such a manner is admirable to say the least. I cannot think of any team that would have done to those teams what Barca did to them.
Lets put it this way.... Milan with Kaka, Shevchenko, Pirlo, Rui Costa, Inzaghi, Crespom, Seedorf, they were destroying teams 6:1, 5:0, 4:0, while Capello's Juve was beating these same teams 1:0, 1:0, 2:0, 1:0. In the mutual match Capello's Juve beats the super Milan 1:0.
Or your super Arsenal from 2003/04. They were destroying everything on their way until they got Makelele's Chelsea in the quarters of CL.
No team in the world has so much quality in midfield and attack as Barcelona has right now and no-one can score with such ease as they can. But there are teams that with great tactics, great quality everywhere in the team and great defending can stop Barcelona, just like Capello stopped Milan or Chelsea stopped Arsenal.
