Doesn't really matter all that much, and having fewer features is generally better since there's less background hogging by those resources (i.e. extra network cards, non-chipset USB/sata, fancy USB lighting units, etc). I would personally go with Gigabyte, their boards tend to be fairly stable and don't force random "ai tweak" stuff to do normal things. Maximus is a good board though, really all up to you.