All except for #3 belt, i would never risk (or understand) a quality light clipped to a belt when I can so easily place it in a holster. I normally use #2 holster, with a back-up always on my keyring. At work I add a light in my pocket. Of course I have various lights available in my vehicle.
My .02 FWIW YMMV
My .02 FWIW YMMV