UA Quarterback sleeve >
I have the Sunrise and while very well built and better quality than the UA, it always wants to rotate on my arm, slide down to my wrist, etc. The UA sleeve, while not as nice, actually stays put where I want it and that matters a ton to me. Also cheap enough to dedicate one to each rifle.
Honestly not worried about durability, I used the Cutter version of the UA sleeve in high school football. Our offense ran off of them and they held up well over several seasons, including most days practicing. Easily saw more hard use in 4 months of the season than most shooters will ever need in their lifetime (myself included). My offense in college didn't use them, but turn on most any game and they are being used to great effect.