I think the main reason FOABP sounds so good is Steven Wilson's unique way of layering tracks and textures.. he's certainly a genius when it comes to creating a "soundscape".. it's defenitely a great mix as well.
Anyway, I heard somewhere it was mixed and mastered ITB in Logic by Steven Wilson. It was recorded in like 5 different studios, including SW's home studio. I think the guitars were recorded through a Vintech pre and Digidesign converters since red room recorders are credited with engineering the guitars and their website states that they mainly use Vintech pres and Digi 192s and SW uses Bad Cat amps (which are freakin' badass). The distorted guitar sound on that album is totally balls. Aside from that, I don't know.
If you're trying to be someone else, who's being you?