LesPaul, I will try to add to the wisdom in the posts above by simply providing some of my own experience. Take it for what it's worth.
What led me to this forum was a search for new holsters to replace my (still worthy) holsters dating back to the middle to late 90's.
Despite a career in LE I am not a gun forum whore and while I would occasionally peruse a thread or two online when there was a topic of interest under discussion, I never felt inclined to register or join.
When I read the intelligent and helpful discussions on this site regarding the work of previously mentioned craftsmen like Tom of Dark Star Gear, Tony of JMCK and others, I found that not only did I come across the answers I sought but I also found a community that I wanted to be a part of. Having been a super mod on another enthusiast site since the late 90's, I'm more than well aware of what makes one venue stand out from the rest.
The only thing I can fault is their willingness to take me on but everyone makes mistakes, even supremely confident and intelligent guys like Tom Jones.
All of this is preamble to this: The makers who are popular on this site are popular for a reason. Their designs have withstood hard use and the test of time from accomplished folks of many backgrounds. Sure, some have gravitated toward favorites here and there but there's not a one of those favorites among the regulars here that I wouldn't consider a tried, true and worthy design.
The membership may not always agree on every particular but the collective wisdom will steer you down the right path. When these folks tell you to take note of one design or steer you away from another, take note.
By the way, I started carrying AIWB in 1988 with a ballistic nylon IWB holster from Assault Systems. The gear has only gotten better over the past few decades and the advice received here is what helped me to find the right makers for my gear and needs.
DSG and JMCK get my vote based upon my personal experience with them. Others are equally worthy but I haven't had the opportunity to test them myself.