I feel that way about my 7 string Les Paul Classic, at least for electrics. It's got very tight, solid construction, it can take a great setup, frets and neck profile feel awesome (my favorite neck), no dead spots or buzzing or any other problems. When I take stuff off to work on it I'm impressed by the hardness of the wood compared to some cheaper guitars which are already losing the ability to hold those little screws for the cavity covers, and everything fits precisely. And it sounds great going into the Pittbull.
It's a lot of things that add up to an easy, fun playing experience with the ergonomics I prefer. It lets me focus on music instead of constantly getting used to something and chasing tone or setup compromises. It just all falls into place; everything is where I want it to be. I think it looks cool, too, all black with cream plastic and chrome hardware. It'll fit in anywhere I want to be, not that I really care about that. I'm mostly an Explorer player because that was my main and sometimes only guitar for twenty some years, but there's no question the LP outclasses it while having pretty much everything I want in a guitar from years of playing Gibsons.
My Taylor 815ce (jumbo maple backed steel string acoustic) has got to be the "finest" guitar I own, but I rarely play acoustic anymore, and it's in its own category in my head.