done a little research but don't know much about em, I just got my Glock 19 gen 4. I want to be able to conceal carry and then also have the the option to carry it on my belt when i'm hunting.
Look at Crossbreed Holsters for the everyday concealed use- they hide well and provide decent comfort. I like the Blackhawk SERPA holster when hunting as I put the holster on my pack waist belt and the gun is very secure in the holster.
I've been packing my glocks in a bianchi black widdow for 15 years. Its comfortable and very well built. A lot of the "tactical" stuff out there is built for looks and not much else. A holster especially a concealed holster is kind of like a pack or boots, if you don't get a comfy one to start with you will regret it or leave it home.