I like the tad gear fast pack lightspeed for a military style daypack. I use that a lot for single day hikes.
For multiple-day hunting trips, the eberlestock dragonfly is amazing. I can pack everything I need and the straps and internal frame keep me nimble with 50+ pounds on my back.
For quick predator hunts when I need minimal gear (because I'm never too far from my truck), I use a 1st Gen maxped condor.
For really short, quick hikes, I take 1st gen camel back outlaw. That can carry my water, rain gear, fak other bare minimum survival gear.