Gam3r01 :
EVGA, some of the best quality and support.
ASUS, one of the best coolers (DCUII)
MSI, highest out of box clock speeds, good cooler, good overclocking.
Gigabyte is ok, but not as good as the 3.
I fully endorse any of the first 3.
Like PSUs, it's not the brand name but the product line.
In my experience....
EVGA Classified = great, FTW mixed experiences, SC = avoid
Asus DCII .... ridiculously conservative overclock, but great cooler and solid overclocker.... until recently the best for water cooling
Gigabyte Windforce .... solid board, good cooling, very loud
MSI .... In the last year, vast improvement..... not that they were bad before. Looking at the hardwareinfo review below you'll see Asus finished 1st, MSI 2nd, EVGA...