No, Bavaria is actually one of the worst. The best are by far in the east, Sachsen. When I have to go from Sachsen down to Bavaria all hell breaks loose. Crippled asphalt, broken concrete from the 30s, endless constructions, highway police enforcing 80km/h. It's the worst.
I drive A8 (Stuttgart - Munich) and A9 (Nuremberg - Munich) regularly and don't see much to complain about. Compare that to A5 here in southwest and you see what I mean...
Anyway, if Saxony really has better Autobahns than Bavaria, I need to go there soon ;) Any specific recommendations?
Rather from the 90's and later. You surely remember the bike driver, jumping to dead over a heat-caused artificial surface ramp on the A93 two or three years ago.