I prefer the smartsams offroad (hardpack with fine gravel on top) and the JW for more onroad. Im actually running both tires on the same bike as I like the JW(for wear) at the rear and the smartsams at the front(for traction) but this is based on the mix of trails I ride.
How would you compare JW vs Smart Sam on the road? Although I like Smart sams off road, on the road it feels like there is a substantial drag. I am in between Super moto X and Johnny Watts.