I guess if we're going for lights that are truly special and meaningful, it would have to be my Fenix L0D rebel 80.
Some of you remember why Fenix discontinued using the rebel emitters. Well, I tested mine out at work for a combined 25 hours of being on, over the course of several days. Put it on medium mode. That was back when I worked in a patrol vehicle over at the giant Con-Ed complex in Astoria NY. Left it sitting on top of the dash for hours at a time. I lucked out and got one where the emitter held up nicely, despite the heat build up in the head.
Then, soon afterwards, that Fenix earned its keep when my Night-Ops Gladius failed on me in a miserable way. I posted that story on CPF years back.
So yeah, can't sell that one. Never will. No, I don't EDC it. I'd be mad as Hell if I ever lost it. Not like I can just order another one from Fenix.