The SuperFlower for sure, really its a far far better unit.
I know I keep saying it, but the Superflower's are over-engineered, they could probably call the 1200W models a 1500W at GOLD rating and still be 100% fine.
The SuperFlower 1200W Platinum is pretty untouchable, and our price is very very good. They also delivery huge amount of AMPS on 12v rail too so are a great solution for powerful VGA cards and overclocking.
Like I say we shall be transitioning most of our system range over to these, including 8 Pack models, that is how impressed we are.