Dexter Henschel
Elio Fan
If I ride solo, I'll ride left lane through town; right lane country / away from city.
Left lane so I have room to escape driveways and idiots, right lane out of city to give space to lane drifters from the other direction.
It actually depends on traffic more than anything; I want to most room to avoid bad situations.
Riding since 1948... I ride in the left wheel-track except if I see an eighteen wheeler overtaking me, then switch to the right to avoid the wind buffeting.