The common "too fat" complaint about Schecters is obsolete. Thier recent models all have slimmer necks than they used to. Plus, they just introduced the SLS line which is even slimmer. I find it kind of funny when so many companies are offerred as comparisons and they are all literally the same guitar.
The neck through and set necks are all made to the same standard as they are made in the same factory. The only modifications are the wood choice and the body shape. The PRS Torero and the recent Diamond series schecter are the exact same neck and fingerboard. I have one of each in my studio. In fact, play a recent Dean, PRS, BC Rich, Schecter, DBZ, ESP, Some ibanez, Jackson imports, and many more i'm forgetting at the moment, and they are all the exact same neck cut, and come from the same factory.
I haven't noticed any Schecter quality issues, but if they are all the same, the ratio must be spread evenly over all the companies. I recently became Schecter endorsee and actually really prefer thicker necks. I had a hard time finding them in the inventory, especially with the new SLS line being stocked now. I will note the caveat that I am referring only to the set neck and neck through models from Schecter and the others as they are the only ones i'm interested in. I would doubt the bolt on difference is there either though.
I also haven't noticed a finish any thicker than most imports either. I have an avenger that feels, plays, and has the same level of finish thickness as my PRS torero. The difference between the two being the Torero has a maple neck and sounds "Bouncy" The Schecter Is all Mahogany and weighs so much it has it's own gravitational pull. It's chunky as hell for rhythm. I really dig it.
I find alot of times the setup, or lack thereof on a guitar can fool the player into misjudging the thickness of the neck and other feel perceptions. String gauge can do it as well.