I have all three, love them all, get one of each!
Seriously though, any special criteria? The attitude is good because it is sturdy and very easily carried. I just plain like the LW 2000, semms a bit more brighter to me with the 4leds, am unsure if it can run on lithiums though, but I like it also due to its size. Offers a firm grasp for my hands and like it in the back pocket, due to its length it will reach all the way down in and [to me] offers better security from falling out while still being able to be drawn out quickly. Plus it too is sturdy.
I have the impact also, again sturdy, but it puts out a spot and beam more like a traditional incan flashlight would, as opposed to the flood light effect from the other two.
I say check out various member sites for reviews and impressions [remember that your personal opinion is whats important in the end]. You could post in the B/S/T forum to see if anyone has some used ones for sale. That is how I got my 2 attitudes, the LW, and the Impact. And they are in practically new condition. Personally I'd say start with the attitude [you'll love it IMO].
www.geocities.com/webley445/index.html
