I just went through several releases trying to make the switch as well. Started with Carter Insatiable. Liked how it fit my hand but didn't like that the hook didn't auto close. Wouldn't have been much of a deal deer hunting but target shooting having to close it over and over was a deal breaker for me. Next bought Carter Chocolate. Didn't like how it fit my hand, not swept back like the Insatiable was and hated the external trigger bar. Next tried the Stan Shootoff. This was just a purchasing mistake as I didn't realize Stan sells different sizes and I happened to get a Medium which was just too small for my hand. At this point I also had a Hot Shot Vapor on order. Then I found a Stan Perfex (bought from this site). I truly believe this is the most adjustable release out there and finally my search was over. Luckily I was able to cancel the Hot Shot order without having to pay for another release and the rest were all traded or sold outright.
I guess I typed all of that as a long way of showing how the fit to your hand is probably the most important part besides the obvious of being a "good" trigger release.