The name brands are all within a couple of frames in the last roundup I saw. Agree with Alvine, get the lowest cost mobo that has the number of SATA, USB, etc connections you require.
Far as I can tell, for a "normal" gaming rig the ASRock Z77 Extreme4 is a fine choice at a reasonable price point.
If you're not going to overclock, consider a cheaper Ivy Bridge chipset. See
http://en.wikipedia.org/wiki/LGA_1155 for a list of features to help you choose.
Agree too that I've not come close to using 8GB RAM to date with BF3 multi, OCCT, and Precision-X running. On the other hand, if you have money to burn and don't plan to upgrade for a loooong time, go ahead with 16GB.