I guess my real question is, who makes the best GTX 680 Card from Nvidia. :P
To my mind, I think EVGA produces the best Nvidia cards.
Good warranty and USA spport.
Look for the factory overclocked superclocked or FTW models.
EVGA likes to use dual slot direct exhaust type reference coolers. They get the heat directly out the back of the case.
Other oem coolers do well on an open testbed, but in a case, they let hot gpu air into the case where it affects both gpu AND cpu cooling. That puts extra pressure on great case cooling.