Well , it's hard to tell. Sometimes Rview works better and sometimes not. Baddies got sometimes stuck at certain spots using the zones from Dxtre3d. In order to solve it I placed a few Rview zones on certain tiles to make them walk the way I wanted but this doesn't always work. You need to try it out by yourself. There are so many factors that can cause a different result(Room size, geometry, portals.....)
It's 50% for Dxtre3d and 50% for Rview, just try some things and see what works better for you