Well, since nobody but Bartholomew had any experiences with these lights (thank you for your comments BTW), I'll post mine.
I bought both from Natchez along with a P61 120 Lumen lamp for the G2 and just got them today. They are both very nice lights and also pretty affordable for this class of light.
The G2 has a fatter body and the button on the tailcap sticks out. That makes it easier to manipulate, but since I bought these for pocket carry, both points are a drawback to me. The G2 has a fixed focus and did not come with any spare bulb. I like the polymer body and it's texture allows a good grip on it. The G2 might be slightly lighter in weight, but not very noticibly. The momentary switch has a nice positive click to it. This is clearly a well made and durable light.
The NF-2 is thinner if you take the adjustable grip ring and belt clip off. An allen wrench is provided to do so. However, that also prevents use of the enclosed lanyard. It also comes with a spare bulb enclosed in a special compartment inside the light. The body is lightly knurled, but the grip is not nearly as non-slip as the G2. The NF-2 looks and feels very much like a stubby 2AA Maglight, but *much* brighter. The NF-2 has a recessed momentary button on the tailcap. The only thing that concerns me about the NF-2 is it's push in "pin" bulbs. Perhaps, I'm worrying about nothing, but I've seen this type of bulb rattle loose in Maglights. I think I'll carry it lense up in my pocket for added piece of mind.
Overall brightness is about the same with the optional P-61 120 lumen bulb in the G2 and the standard 100 lumen bulb in the NF-2. It's dark and rainy right now. I just went for a walk around outside comparing both lights. I think I'd have to give a slight nod to the NF-2 for long range visability due to it's focusable lense. The G2 difuses the light a bit, making things around you a bit brighter. The NF-2 allows a sharp pencil beam, to put more illumination on far objects with less local distraction. It also allows you to put more concentrated light on a close object as well.
They are both excellent lights for the price. However, if I was to buy just one, I'd have to say I prefer the NF-2, even though the G2 seems better made and sturdier. The NF-2 is just more versitile, thinner, but just as bright as the G2. I'm going to carry the NF-2 daily. The G2 will serve as a backup and house flashlight. Perhaps later, I'll get another G2 just to keep in the glove box of the car.
