There are a lot of models, it took be a while to decide, but it isn't as hard as it seems. There is a spredsheet on the main page "compare all models" in a red box to click. If you answer the questions below just look up the models you want.
Decide battery type: AA vs 18650 (there are a couple CR123 too)
Decide beam type: flood (wide angle), Floody (tighter than wide, but not a spot - even light), spill+spot (tight spot with diffuse spill around). I went with Floody and think it is great compromise beam for general use.
Decide on color: neutral or cool white (lot of people argue for neutral, few for cool white, but color isn't a biggie for me)
Decide on generation (older gens can often be had for less, but the newer gens seem higher performance).
I noticed Amazon has them now, didn't check the prices.