[Stewartb109]

Blackhawk - Stay away from it, its all made overseas no in piss poor conditions
LBT- Great stuff when you can snag their military grade, bad stitching and feel on civilian line of gear
Eagle - Great stuff, but some of it is starting to be made overseas for civilian line
SOE- Overbuilt and heavy, but because of that will also take a beating
HSGI - some of their stuff is great, some rigs are horrible if your only using it for airsoft due to bulk
TAG- Awesome stuff, light weight, and great construction, not as expensive as LBT, similar designs

Those are the main ones I work with or around. They also offer amazing warranties for if you break it. If you have the money most of them will custom design your gear for you.

Paraclete and DBT are other great companies but I haven't had a chance to work with it much so I can't tell you anything about it. Squadmates of mine use it and love the stuff though.

Best place to get it is through the manufacturer directly. If you go to some sites like SKD they tend to grab the cheaper made quota gear from the manufacturer, which could have it being made overseas or with cheaper materials