Ranger, there are a few reasons I went with Pat's system.
On a Quick Hitch, some implements wont work.
1. There is supposed to be an industry standard on width at the bottom but not all implement manufacturers adhere to that.
2. You have to get off the tractor to hook up the PTO shaft, if needed, so why not connect the top link at that time?
3. The top hook may be at the correct position, or it may not. Some quick hitches are adjustable, some not.
I try to place all my implements on 4X4's. That way when I back up to it I don't have to make sure I'm lined up completely square. I back up with the tractor and kinda shove the implement around until both hooks line up. Lift up on the hydraulic lever until they lock. Get off and hook up the PTO and the top link. The hydraulic top link makes it even better.
I bought mine years ago at the Louisville tractor show and have never taken them off yet.
The only implement that wouldn't work for me was a Yanmar tiller. The pins were too close to the tiller sheet metal.