Mike of Inretech makes really good points. Sometimes brightness is less desirable than Runtime. Finding a balance between the two is not easy. The Inretech Adapter for the 2AA minimag is one that gives a balance, though on Lithium AAs only. The Inova X5T is another that gives a nice balance at a reasonable price. At the top end of this list is the Arc4+ Premium.
Now, I recently got a Guide Gear 3C Aluminum 1 watt Luxeon flashlight from Sportsman's Guide. I find that it gives superb brightness, decent expected runtime (ignoring claims), at a reasonable price. Sure the weight is a bit on the hefty side, but, I can deal with that easily enough. It became my favorite flashlight soon after I loaded 3C cells and turned it on for the first time.
I can't afford to waste a set of batteries for a runtime test. Plus, I would need the instrumentation, which I don't have. /ubbthreads/images/graemlins/icon3.gif
I brought an old Radio Shack branded 2AA aluminum focusing krypton light back to usefulness, by installing a Versalux PR-2 LED bulb, in place of the incandescant bulb. Did the same with my only Mag-Lite (R).
The best thing you can do, is to first fill your particular flashlight needs, before looking at wants.
If you live and/or work in a theft prone (from car) area, then you car light should not be expensive (Surefire, Arc). It should be able to use either CR123A lithium, or, AA Lithium (Eveready Energizer L91). The X5T fits this, and does fit in the Nite Ize headband. It is more than bright enough for changing tire(s), or working under the hood. Given that it runs on a pair of CR123A batteries, it is great if you live in an area that gets really cold (or can occasionally does). It is small enough to fit in the glovebox, and gives you 20 hours of total runtime. Its beam pattern is a flood light. I have one and like it alot.
Lithium batteries are also less likely to leak in the flashlight.
1.) Consider your needs.
2.) Consider the maximum prices for the lights that fit your needs.
3.) Find the lights that fit 1 and 2 above.
4.) Figure out which ones (3) fit best.
5.) Make your purchase(s).
6.) Now you can take care of your wants.
7.) It is all downhill at this point, and, the slope is greased. /ubbthreads/images/graemlins/grin.gif
'Normal' people don't understand our fascination with lights, yet we have a hard time understanding why they collect things like Barbie Dolls or whatever. So, be prepared for funny stares and the inevitable 'you paid $$ for a flashlight?!?!?!'
Welcome to CPF, Lewis. If your not careful, you can spend alot of money on one flashlight real fast. /ubbthreads/images/graemlins/grin.gif