This is pretty much a question that could only be answered by the persons out there who own both but I've been wondering about the quality difference between an LTD body and it's ESP counterpart. I would say quite obviously that and ESP body is probably looked over a bit more closely and hand finished with a little more precision than an LTD but otherwise, it's pretty much the same body right?
From what I understand, they use a better piece of wood for the ESPs than for the Ltds. This should lead to better tone and less chance of warping over the years on the ESP. They probably just use scraps of wood for the low end chinese stuff, lol. It's like McNuggets: no one really knows what's in them.