Flashlights are one of those things that some people are really rabid about, and there are so many options out there, so many coming and going, that it can be really tough to figure out where to go. I have assembled a kind of random assortment that, through sheer accident, works pretty well. See if anything here strikes a chord with you.
Milwaukee M18 2735-20: Impulse purchase at Daddy Weekender because they were cheap and I'm on the Milwaukee M18 battery scheme.
PRO: Cheap, versatile, and useful; can be set down on a flat surface and aimed where you need it; crazy long run time; our M18 batteries are usually charged up and ready.
CON: It was cheap because it is cheap; does not look or feel as substantial or robust as a Milwaukee product should; bulky; proprietary batteries are heavy and expensive; not particularly impressive in any way.
Stinger LED: Traded in an incandescent Stinger on the tool truck a lot of years ago. This one sits in a wall-mounted cradle charger and is the go-to when someone just needs a flashlight. Streamlight stuff is typically marketed toward professionals and generally built to take a pretty good pounding. Some of them are serviceable to some degree when things wear out or break.
PRO: Tough enough to be used carelessly and in any weather; multiple brightness modes with intuitive interface; strobe function is easily activated and is a fantastic attention getter; robust charging cradle is easily mounted to a wall, etc.
CON: Beam is not adjustable; too big and heavy for really convenient pocket carry; not the cheapest option
Anker Bolder LC40: Purchased for work use from the giant internet place. Goes to work with me every day and on tags along on construction site visits.
PRO: Bright as hell; multiple brightness settings, strobe, and SOS modes; USB-C charge port, so charging can happen almost anywhere; just about small enough for pocket carry.
CON: Reflector is larger diameter than body, so it doesn't slide in and out of pockets easily; power off and mode selection are not intuitive; sharp edges and unnecessary tacticool styling; quality is reasonable, but probably not BIFL.
LitezAll glow-in-the-dark 3-cell AAA COB LED: An impulse buy from a point-of-purchase display at the aforementioned Daddy Weekender. Much like the ubiquitous Harbor Freight cheapies, but not quite as cheap. We each keep one in our natural disaster bugout bags and the kid carries one in his backpack. Despite being so cheap they are almost free, they're actually really useful, especially for kids.
PRO: Usefully bright, general-purpose flood beam; dirt cheap; simple on-off tailcap switch is simple and intuitive enough for anyone to use; nice size for pocket carry; ideal for backup or just-in-case backup a kid's backpack, bugout bag, blackout box, glovebox, etc.; AAA batteries are always available.
CON: Glow-in-the-dark only works after prolonged exposure to bright light, which is not the environment flashlights live in; rubber (silicone?) exterior grip sleeve cuts easily; alkaline batteries will eventually leak if left connected (I cut a thin plastic disc to act as an insulator between battery holder and tailcap when in storage); very short throw.
Streamlight Nano keychain light: As the name implies, it's an absolutely tiny little keychain light.
PRO: Costs less than a good hamburger; unexpectedly useful and undeniably handy; goes wherever your keys go, so you always have at least some light with you; adds almost no bulk or weight to your pocket; neat little spring clasp makes detaching it easy.
CON: Output is only ten lumens; takes LN41 hearing aid batteries, which are harder to find and have a shorter run time than other options.
Skilhunt E3A single-AAA keychain light: Another one from the giant internet monolith, purchased for the kid's fourth birthday as part of his Altoids tin adventure kit. I'll likely replace the Nanos on Mrs and my keychains with these.
PRO: Really nice build quality, excellent value; larger than the Nano, but much brighter, and still small enough for keychain carry; simple twist interface, so no buttons to fail; a high-CRI version is available; AAA batteries are available everywhere; includes printed instructions, a replacement seal, and heavy duty split rings in two sizes; available in lots of colors for easy identification.
CON: Not quite as bright as the LitezAll 3-cell unit; no tailcap switch or multiple modes, so probably too simple for flashlight/tech nerds.
Thus concludes my muddying of the flashight waters.