I've had a bunch over the years, now I find alternating between a Marsupial gear pack and a Rick Young Outdoors minimalist strap, depending on what I'm doing.
I have an AGC Kodiak Cub Max that I used for one season, it's very well made but I don't care for the rearward opening lid. Seems to sort of get in the way for me. The Marsupial opens forward and the lid is magnetic, so it stays closed or open depending on what you want it to do.
The minimalist strap is great when I'm not feeling like using the pack (like when I'm still hunting in the woods), I can wrap the cords around the barrels of my binos to keep them from flopping around, or wear it side saddle to keep them out of the rain.