Keven - Whilst the Blackouts are vastly superior to the EMG's, they're still not quite BKPs, heh. Tonally they're pretty nice, but for me on a personal level, all they do is give me an idea of the potential tone of the Guitar. When those BKP's are in, it'll sound nigh-on perfect.
EMG's - I find they are usually lacking in tonal quality. Seems to me they build them for power output and brootalz, but don't put any emphasis on a particular "tone". They're alright for a while but they always seem like they are lacking the hallmarks of a truly great pickup.
that' what i found with the EMG's. too much power, too little clarity and response. i know blackouts aren't BKP's, but at least they're closer to passive pickups than EMG's (from your description and from what i've read around)
I'm definitely getting GAS now :D