I like flying routes that don't exist on X-plane. My favorite so far is the route from ZUNZ, Nyingchi Mainling, CHina to VEMN, Dibrugarh India. Taking off from this airport is challenging because you have to navigate between himalayan moutain peaks as you climb. I rarely manage to takeoff without atleast one "terrain" warning from the plane, but its fun to navigate with a nice view of a lake almost at the top of the highest mountain in the route which you fly over just before you reach the top of the climb.