I have towed with both ball and ring/pintle and I find that it is easier to maneuver and back up with a solid ball mount over the sloppy ring/pintle since that mount is not 'rigid'. I recently rented a towable lift and it used a ring with surge brakes. That thing was terrible. When attempting to slow, the trailer would get a bit of momentum as the ring moved from the rear position and slammed into the front of the pintle (giving you a kick in the rear) and then the surge brakes would activate and the ring would then bounce fore and aft until you finally stopped.
Given the choice, if towing with a pickup, I would go ball; if I was hauling with a tri-axle dump, then a pintle hitch would be acceptable.