Hunt with the bow you shoot the best. The limb length has not been a great factor with me, though I have not hunted a bow over 60". I used a 52" '65 K-Mag and a 58" Morrison Dakota last fall. I hunt on the ground, for what it's worth. (Not much, according to the deer. :p )
Shoot all three for a month or two, then ask yourself a couple of questions. Which one am I most confident with? Will I be able to pull it easily after sitting with my butt frozen to a log for three hours?
Pick your bow, then, and shoot it exclusively. Shoot the arrows that you shoot best. Make more. Any of your bows is capable of doing the job with the lightest Sitka Spruce or aluminum, or the heaviest ash, hickory or lam-birch arrow.
I will put in a plug for genuine Polartec fingerless gloves from Ragged Mountain. They come in black, or black. I used them on the bunny hunt, as I have for the last seven years. Just bought two more pairs.
Killdeer