I switched from a XR650L to the WRr... The WRr is overall a far better bike. Much more comfortable and smooth on and off road. I can trail ride it all day and not feel completely shot at the end of the day, the same could not be said for the XR... The XR had a mountain of torque though, that is the ONLY thing that I kind of miss.
Another inmate stole my Avatar...
WR250R... 15 cubic inches of raw power.
xr50r.... More than I can Handle
Oil changed @ 11900 miles + filter (so I don't forget)