Which to buy? I like the Gigabyte more- massive cooler, 8+6-pin power, and BIOS available with high power limit. I have my 1070 OC'd and I'd like to do the same with my new card. However, I'm a bit concerned about all the defective cards mentioned in reviews on Newegg and Amazon. Are defect rates really that bad? And will the Gigabyte actually have that much more OC headroom than the EVGA model with the more humble cooler?