4. Bayern Munich
Despite the growth of Dortmund, Bayern remain Germany's most supported club and also its most successful one.
From Oliver Khan to Frank Ribery, there have always been stars pulling on the famous Munich jersey, and all of them have brought trophies to the club.
Bayern's Alianz Arena is just wonderful, and sells out for every home match.
Coupled with Bayern's feats last season when they won the treble, and you have a truly global club.