So far, I have tried the Blackhawk & Wilderness Tactical (Horizontal). The Blackhawk sticks out too far so I sent that back. The Wilderness Tactical is made well & fits fine, but there are pretty much only 2 places on my waist to put it without it sticking out too far & 1 is my back which makes sitting back uncomfortable. It also holds the mag a bit too tight for my tastes and tends to slide around on my belt.
I have a Uncle MIke's, Crossbreed IWB, Talon & Comp-tac still on the way.