i nvr touch gibson before in my life, so i cant comment on them.
but last year i really regret selling away mine epiphone les paul standard which i got from luthers (1st mic batch i believe, not this year luther batch, the previous year one). it is flawless guitar with really decent fret work done. the only fault i can find is that the lacquer is not toufu smooth, on the back where it is flat top (not curve) can see some lines which is rather normal in manufactured guitars. not really complaining on that but thats the only downside i can spot. anyway the epiphone i used to have, have nice quality pot. the one on display at sweelee, i try turning them, i dont even need to plug in but already feel cheap while turning. of course i did a quick sound to check if any staff is beoing me before i try turning the tone without permission =)