It depends on what CPU you intend to get. The X79 chips use different Intel chips than than the Maximus V and Maximus VI Hero do.
If you plan to get an Ivy Bridge-E chip, go with any of the X79 boards and you'll be fine, though I hear the Rampage IV Black Edition is getting some pretty good reviews if you want a recommendation there, since you've listed like four X79 boards.
If you plan on going with Ivy Bridge regular (like a i5-3670K or i7-3770k), get the Maximus V.
If you plan on going Haswell (i5-4670k or i7-4770k) get the Maximus VI Hero.