I've never seen, held or tried a Beltman belt, so I can't say what's comparable. But...
I currently own a Looper Leather gun belt. I think it's a great piece of craftsmanship, and it does a decent job at keeping my pants up while I'm carrying.
My buddy, Travis, owns an Armour belt, and I checked it out a couple weeks ago. Holy moly. Based on initial observation without trying it on, the Armour is better quality than the Looper. The Armour is thicker, sturdier and stiffer.
So, I ordered an Armour tonight and will hopefully have it sooner than later.