So on the Gibson you'll get better quality Vol/Tone pots and wiring and pickups.
That said, IMHO, you won't see much difference in the workmanship. Perhaps a better finish since they'll typically use the nicer lacquer on the Gibson, and likely better HW all around.
To be totally honest... If you really don't care about brands and labels...
I just got a Schecter Tempest Balckjack, and I have to say for the $$$ it far
exceeds anything I've played in Gibson's regular production. Pickups are genuine Seymour Duncan, Bridge is Tone-Pros tune-o-matic... Came with locking tuners
and the body is solid mahogany with nice grey pearl binding on top and headstock. IMHO an overall brilliant guitar for the $. To get similar quality from Gibson/Epi your looking at Custom/Elite lines respectively