>>2245306Best bike is the one you have. Beyond that, it depends on what you want to do with it - if you stick to cleared trails, a bike with a powered sidecar is best, while for offroading, you'll always end up with a lightweight small displacement engine.
For an all-purpose bike, I'd say you need
<100 kg weight
aircooled
preferably no electronic controls, though electronic ignition is still manageable. Anything more than that is just inviting problems
drum brakes. Disc brakes are said to have problems with mud.
No hydraulic controls. Changing a wire is easy, changing a hydraulic line isn't.
Tube tires, since they don't lose air if the bead comes loose. inb4 blowout: I've had a valve rip on me at ~40km/h before. It's not nearly as bad as some people say - front wheel started shaking a little, but straightened up when I hit the rear brake. Unless you have extremely short handle bars or are driving too fast, you can control a blowout easy enough.
Personally I'm driving an XT 240, and am mostly happy with it, even on German highways. Only problem is that with the raised exhaust, mounting bags is a bit hard.