Pulling Transmission and Engine 69 Barracuda

I've done both ways, but if you are stripping the car for body work, I'd say out the bottom. Pull linkages, lines, wires, etc., driveshaft, radiator & fan. Jack &/or moving dollys under K member, engine, & trans until well supported. Unbolt K member, then start piling toolboxes, drills, whatever in the trunk, and the body will do a "wheelie" right up and off.
As with everything, think it through, and pay attention. That's a lot of weight and you can get hurt in a hurry.