You are about to enter the argument zone dum-dum-dum!
o_0
Lotta people have different opinions on what lights have better build quality.
I find that after Surefire, Fenix consistently has the best build quality for their price range. Followed, by a hair, by at least 5 other brands.
What type of battery do you want to use? How many?
For a 2 AA light, I feel that the Fenix LD20 / LD22 is the best there is out there. Some throw better, some have more flood, but the LD20 / LD22 are right in the sweet spot.
I you want a light with less than 3 lumens, people go for 4sevens Quarks.
I honestly have no real world use for a flashlight that has less than 3 lumens.
..and I hate Quarks ...but to each their own.
Need more throw? and EagleTac is the way to go, unless you have a degree in LED light building, then Dereelight Javelin is the top thrower.
I only really do AA lights, so others will have to comment on CR123 and 18650 lights.