The advantage is being able to access a huge FOV. Now if your shooting deer out of a fixed blind/stand it isn't that big of a deal but if your a tracker or still hunter having a large FOV gives you faster target acquisition and to be able to see openings ahead of a moving critter for a shot. Then if you have a longer shot where you have to make a precise shot or thread one through the timber you have the ability to turn up the power. I don't hunt big game much anymore, but when I did my rifles wore Weaver V-3's, V-4.5 and Leupold VariX 1-4's. Now I hunt called coyotes and my coyote rifles wear Leupold 1-4's on the combo guns and 1.5-6 on the rifles. "There is always time to turn the power up, never time to turn it down" so mine stay on the lowest power all the time.
