I started with a glove, killed game with it, tried many different ones - liked it. I felt clumsy with a tab, but eventually I made myself get used to it. Now, it seems much more natural for hunting. I use the Fred Eichler tab. Many times I've seen game with my tab in my pocket, been able to get it out and be ready to shoot in no time.
I don't care for the tabs with the elastic band, although Bateman told me you can shoot more consistently with one. The ring type tab is very convenient for hunting, and it doesn't take long to get used to shooting it.