Depending on the point in his career, I've seen pictures of DiMeola playing a 335 block-neck, a 175, an LP and even a strat. I do think he tends to favor the LP, though.
I've missed his concert in Turkey this year , but last year he was using a solid body guitar and not a les paul...
Well, initially I asked about the guitar he is using nowadays after his return to electro with flesh on flesh and consequence of chaos...
On the cover of CoC he is holding a PRS, when you go to his site the picture shows him holding a doubleneck PRS, so those are at least in his current arsenal.