C8 & C10 difference?

Looking around I notice that there flashlights C8 or C10, and visually the only difference is that the reflector seems a bit longer. Are there any other differences? Having a longer reflector means more throw and less flood? And what about brightness?

Also I saw a C108 which looks like a redesigned C8... is this so?

What would you choose? A C8, C10 or a C108?

C108

+1