Very interesting topic.
First of all it depends on what team the opponent has available. If it is a team that with effort can realistically challenge Bayern in possession or in pressing, then I'd say they should go ahead and play their own game. I have always believe that teams abandoning their playing style and coming up with something completely new when facing Bayern and Barca is a big contributor to the two clubs' success. One needs to adapt, but there is a limit to how much one can change to be successful.
For other teams, experience has shown long balls and counter attacks to be the best way to stop Bayern. I suppose I would go with a mixture of this and time wasting.
When I think about it, I can see why Bayern loses so rarely. Very few teams can hope to challenge Bayern in terms of possession or pressing, and only Barca can do it in both. Bayern are no longer as susceptible to counters as they were 2-3 years ago. You can't simply shut down the central midfield (sort of like Dortmund-Real or Bayern-Barca) and think it's enough to nullify Bayern's threat. First of all, the new system makes it very hard to stop all creative midfielders, unless you have enough players of similar quality to match Bayern in the first place. Second, Bayern can create chances through Dante and Boateng (and some day soon, hopefully Badstuber) and also Neuer. Stopping the midfield is not enough.
Then you have the issue of wings. I don't think any team can match Bayern in that area. Sure, Real might have Ronaldo and Bale, who some consider to be superior to Robbery, but I think we are the only club with two world-class and balanced fullbacks. It is very hard for a team to nullify threats from both the left wing and the right wing at the same time.
Lastly, as Aequitas mentioned, there is the Pep factor. The treble winning team had one weakness, which was rarely exposed, and that was Heynckes' ability to adapt mid-game. Even that weakness seems to have disappeared now, and that is why Pep's signing was much, much (

) more important than many non-Bayern fans think.
P.S. First you say Gotze is just "good", now this thread. Are you Jurgen Klopp looking for advice?
