Hasn't Surefire stated that the 6P was there long time best seller?
My 'guess' is then 6P, G2, Z2, E2E/L, C2, M2. Including Military police in the mix.
Civies: G2, 6P, E2E, E2L, L4... something more like that.
I think next year the E2L/E1L's will be very popular. I already know I want one.