Alaska Guide Creations are the best I've been around. Quality American made. Amazing customer service. Lots of size options and accessories. Most of all they hold up really well. I've seen a lot of hunters come with the badlands that the magnetic closure doesn't hold closed.
+1 on Kuiu. You can attach the rangefinder pouch to the side. The harness doesn't have elastic so you get a really snug fit that doesn't bounce. Lightweight and slim profile if you happen to be a bow hunter.
AGC Hybrid w/o the MAXX pocket. I replaced that harness with one from Marsupial Gear and its been much better. It can seem a bit large at times, but I run my rangefinder in the front pocket as Id rather not have a RF pouch next to my right arm.
I like the Marsupial because the pockets open forward and can easily stay down with the magnet, pretty nice for ease of access for binos and rangefinder when the weather is nice...also great if bowhunting to get the rangefinder in and out easily.