Duncans are good, it just depends on personal preference. I like DiMarzios, you might like duncans, look around and see what works best for you.

What style of music do you play? Judging from your interest in the full shred model I think dimarzio would definitely be worth looking into. Dimarzio's artists include Yngwie, John Petrucci, Paul Gilbert, Satriani, Vai, people like that. Seymour duncan's artists include papa roach, blink 182, faith hill, and incubus. I think it's safe to say dimarzio is more of a shredder's weapon of choice (with exceptions).