Controller for now, MS wheel when I get the energy to set it up.
Braking: ABS off
Steering: Simulation
Stability: Off
Traction: Off
Shifting: Manual w/ clutch
Suggested Line: Off
Damage/Fuel/Tire: Simulation
Rewind: Off
AI Difficulty: Also didn't know about this setting, I suppose professional.
I too remap the clutch to A on the controller (that way I can sort of mash A and B with my thumb for an up-change) and B on the wheel.