My dream guitar would actually be two, first a straight away MII ESP, I love this thing and have for years, just need to commit the 1500 bucks or so.
Second would be finding the same guitar and setup that I played some years ago in Houston. I went to Rockin' Robin (they make the brand "Robin" guitars) I played on one of the employees guitars that he had setup special for him, that was the hands down, smoothest guitar I have ever laid my hands on. He did a custom set of string configuration and setup, I almost creamed myself playing this thing. That would be a find indeed...