F800GS no question
I've had mine for 2 yrs and nearing 27K with no major issues short of a couple recalls, no big. The bike has been able to handle everything I've thrown at it with flying colors. Offroad you can't beat it if your looking for a bike that has a bias for dirt and can still handle a daily commute there isn't much to complain about.
Beemers Uber Alles!!