I keep seeing that we should "pull from the drawbar". I might, if I was pulling a haywagon or rake, etc.
For all other pulling I use the 3pth and watch the height of the bar (unless I'm pulling a plow, box blade, back blade, etc)
My 3pth is designed to carry a greater tonque load than the "drawbar" and is easier to get at than trying to hook up a 200lb loaded trailer tonque. And yes, my trailer WILL be properly loaded so the tongue is heavy (unless the trailer is empty, then who cares).
The 3pth drawbar will also be hooked to the top member to stop it from twisting/spinning under load and screwing up the trailer hitch. This way I can back the bar under the hitch and lift the ball using my fingers on the controls, instead of my back and leg muscles, especially when on uneven ground.
I have found that I can buy 2 1/2" square tubing at the Rent-all that is designed to take a 2" draw bar so I tend to have a 2" receiver on almost everything, even the rear of some trailers...
I have found that 8" of this tubing, with a piece of 2" angle welded to each side makes a very handy "portable, removeable, temporary" hitch. Got one on the rear of my snowblower, just never got around to removing it after installation 4yrs back....