Woods Walker
The Wood is cut, The Bacon is cooked, Now it’s tim
My gut says Fenix is the most reliable of the listed but all 3 are ok IMHO just based on my actual field experience. If I really really need a light to work aka out in the dank dark woods I pack two. Also think the single mode M61(pick your Ls, tint and LEDs) combined with a SF (G2, G2Z, 6p, C2 etc etc) host using a twisty tail cap is probably the most reliable light possible. Just thinking that cuz there isn't much to go wrong. No clicky to click out. Potted electronics. Simple electronics. I can get easier field access to the bezel than MD2 for an engine change should the crazy unlikely happen and I need to pull it. But is that level of durability and reliability really needed for everyone all the time? Some of these makers off options which are rather compelling. Some of their offering are probably more durable and reliable than others. They make a bunch of models.