Safariland
I've open carried with leather thumbbreak holsters for years without thinking anything could be better than what I had. Last year I picked up a Safariland Model 6378 ALS holster for my S&W Model 37. Wow! Absolutely solid and instinctive draw, and I have the option of belt loop for my 1.75 inch belt or a paddle. Well, just recently, I started having problems with my Galls-marked Gould & Gouldrich thumbbreak cruiser-style duty holster simply due to old age and leather stretching. Given my good experience with my J-frame Safariland holster, I got a black basketweave (gotta match my duty rig) Model 6280 SLS mid-ride holster to fit my four inch S&W Model 686. (Yes, there are still a few of us dinosaurs out here.) While the SLS is different from the ALS, I find it, too, absolutely solid and intuitive. Neither holster shifts on the belt while being worn, and the guns are very "grab-resistant." An advantage of both holsters is that Safariland has a wide variety of carry options for them from thigh rigs to different belt size and height loops and paddles, including quick-mounting tabs on the various bases and the STX material is almost bulletproof.
After over 40 years of carrying handguns in all sorts of holsters, I have to say I'm impressed.