I'm still a fan of grabbing their antler and pulling them. I used to have the straps that centered the weight to the middle of your back and they were more of a pain in the ass than anything. Then I tried a rope around the antlers and just pulling, and that was a pain in the ass too. So I went back to the old tried and trued method.
This year I am going to try something new, because the hollow I hunt in has a trail that is no longer ride-able. I usually drop in from the top of a hill, and if I get one I drag it to the bottom, walk back up to the ATV, ride down a really treacherous hill, and then go back up it with a deer. I barely made it down last year, and couldn't make it back up, even with my winch because a camber/trench issue kept flipping the ATV over, so I had to ride down the road 4-5 miles instead of up a 500 yard hill. So this year I am going to try and use a pulley and 100' of rope to just drag the deer up the hill and bypass the deadly ATV aspect. If it doesn't work, then I may just take the road to get there again.