For me it depends on where you are going to ride. I agree on the seat.
But if you if you are going to ride trails the TW I think is better. Tires, torque, suspension, ground clearance, engine guard.
Yes you can get all that extra, but for stoc k bike I think the TW is best for trails.
I have had the engine just stop because of lack of torque at slow speed. More than once. Not good in tough riding.
Unfortunately, there are no real trail riding opportunities around where I live. All the farms are fenced off and there is little public land. There are a lot of opportunities for dirt roads and wildlife management area riding, but the ORV folks end up belonging to clubs to have places to ride.
For me the Van Van is a toy that I can have fun on at slow speeds.