The perception of the leagues probably has more to do with the level and quality of television coverage than anything else. Back in the 80's, after the 86 world cup we used to think Italy had the best league, but if you look at CL winners it was a decent mix and remains so (Porto, PSV Eindhoven, Milan, Red Star Belgrade, Barcelona, Marseille, Ajax, Juventus)
For a time Ajax was the greatest side on earth, but the rest of the Dutch league wasn't going to make you change your plans. As I've said before, this argument about who is best is best over a few beers in good company.
If you like the Bundesliga (and I do) watch it, enjoy it. If you think Spain is the thing, then watch and enjoy that. There is more than enough good football of varying styles to please everyone.
I, for one, am happy to have the opportunity to see
football sports from all over the globe.
After all that, let me just say that Bayern is ah big money advantage side that should be doing much better in the Bundesliga and some men should be glad Luca Toni not there any more.