hammersley,
What are you trying to do here, start a war? Isn't this question like asking, "What's the best oil?" Actually, I'm impressed at how civil all the posters have been.
My story:
I'm also a flashlight junkie. I started with the pieces of junk from my youth (about 45-50 years ago) and worked up from there. In 1980, I discovered the Mag-Lites. I own three of their 3-D's, one 4-D, and several mini Mag-Lites. I don't care for the mini's but their full-sized flashlights were about the best you could buy in 1980.
I had been trying to justify a Surefire combat light for several years and finally got one for Christmas. Great present. I eventually bought a Surefire Aviator, which is one of the best lights made. But even the Aviator has drawbacks. First, it's about $200. Second, it uses CR123A batteries, which are ridiculously expensive. Third, if you use the Aviator on high, those expensive batteries wear out fast. On the plus side, if you don't use the flashlight a lot, the CR123A batteries have a very long (10 year) shelf life. They are good for emergency flashlights that are stored a lot.
I finally discovered Fenix lights. I bought the L2D-CE which is the predecessor to this one:
https://www.fenix-store.com/product_info.php?cPath=22_65&products_id=362
This Fenix light is absolutely the best light I have ever owned. Here's why:
1. It's the brightest light I own, including the expensive Surefire Aviator. This is important to understand. This little flashlight is brighter than my 4-cell Mag-Lite.
2. It uses cheap AA batteries. I use NiMH rechargables for even greater savings (and better performance, according to some evaluations).
3. It's small and comes with a nylon holster, so I can wear it almost all the time.
4. It's very reasonably priced.
I doubt that anything from Fenix will be as rugged as the Surefire, Mag-Lite, Streamlight, Pelican, and many other brands, but I have treated my Fenix harshly and it comes back for more.
You can buy this Fenix directly from the Fenix store (above). I liked this light so much that I bought some to sell. (Send a PM if interested. ) However, I don't have the new 180 lumen version. I have only the 135 lumen version. That's the one that's brighter than any other flashlight I own. I haven't tried the 180 lumen light.
Here's a link to a web site that used to evaluate flashlights:
Flashlight Reviews and LED Modifications
That site is now retired, but the older information is still available on it. There is a huge amount of research represented.
You won't go wrong with most of the lights mentioned here. I just love my Fenix L2D-CE so much that I had to promote it.
Happy hunting.
Loren