Not true at all. Chelsea 2011/2012 would never be considered best European team.What I believe is irrelevant. Winning the Champions league is the only way of cementing that claim.
You could argue until the cows come home about how dominant we are in England but that doesn't make us the best in Europe I'm afraid.
How can you be the best European team and not be even close to win your domestic league? If Chelsea would have been neck and neck with us in PL, I would agree.
Even more important that winning, is how you win it. None talk about Madrid Chelsea or even Liverpool on the same level as Bayern and Barca, because those two teams dominated. Those teams will go down in history as some of the best ever. If we win UCL, we’ll be up there with Bayern and just below Pep’s Barca.