I have a Zebralight (H51) and I'm not sure a ZL is what OP is after. They are nice lights, VERY bright and light weight for the money. I don't consider them particularly strong or 'tactical' and OP's listed choices seem to have a particular look to them (at least the original 2 listed). For a first light, that can be an important factor.
I'm sort of new to the LED light world myself, so others are much more informed. Love my ZL for biking, night reading and many other uses. Nice UI (except the 6 double click thing).
I'd go with the JetBeam rrt2 of the choices OP listed. Definitely take some time and do your research. From what you listed I would guess you want some quality and a little style instead of the best bargain.
Battery choice is a pretty important factor for me. I'm not real interested in lights that stray from the AAA-D NiMH format. Lights that offer AA + additional battery options are a big plus in my decisions (like my NiteCore DI). Are you currently locked into a particular battery option? Will you be using rechargeables and do you currently own batteries and a charger?
How often will you use this light and for what purpose? If you want a tactical light for EDC or mounting on a weapon your choices could be very different than somebody who wants an emergency flashlight when the power is out.