That's a great idea!!! not thought about that but here are my impression of the differences so far.
1 – PRS is better finished. I have been checking every mm on the PRS since I had it 10 months ago and cannot find a single flaw in the finish. The Les Paul I can spot a few things that could be better cosmetically.
2 – The PRS' 57/08 clean is more chimey, more string separation, but the Les Paul sounds fatter when distorted, this could be due to pick ups used and the Les Pail is heavier.
3 – The PRS is lighter, despite being solid mahogany body, it is about a lb lighter.
4 – After almost 14 years, the plastic on the input jack on the Les Paul has a hairline crack. From what i gather, this is quite common. The PRS will never have that problem being metal.
What I wasn't expect from the Les Paul.
1 - The Les Paul stay in tune, I know PRS stays in tune well but this Les Paul stays in tune just fine after 2 hours of playing, with Klusons no less.
2 - The Les Paul is very resonant, hit the strings when unplugged it just rings forever. I know PRS is renowned for its wood drying and crystallisation of the resin but this Gibson sustains all the way to next week. May be because the guitar has 14 years of drying on top of being made or may be perhaps the Custom Shop picked better wood than the USA line, who knows.