Thrunite Archer 1A V3.
It's a basic tactical style 1AA light, but I love the UI. Also 14500 capable so it has some versatility. All for a budget friendly $30.
Favorite daytime EDC: ZL SC62w - Smallish, pocketable, 18650 cell, many different levels.
Favorite nightime EDC: ZL SC600w Mk IV+ - All the above, but I like the beam profile a bit more for reading at night and general use.
Favorite light for accurate color rendering: Solarforce L2P with a triple Nichia 219 dropin - Great color rendering and huge floody beam for lighting up an area.
Favorite light to keep on the night stand: ZL SC700d - Huge output if needed, but also extreme low output for nighttime visits to the bathroom, 21700 cell, good color rendering.
Favorite light for messing around with: Jetbeam RRT01 (modded with triple Nichia 219) - Infinitely variable control that goes lower than seems possible, just plain fun to use.
Favorite around the house fixing stuff light: Skilhunt H03 headlamp - Great when I need both hands free for hooking up TVs, stereos, or just fixing stuff.
Favorite light for the bug-out-bag: ZL SC52w with a AA primary lithium cell installed. AA cells can be found anywhere.
Favorite car light: Husky $10 heavy duty beater light from Home Depot, fitted with 4 x AA primary lithium cells. I have another one in the house that I loan out to people.
Honestly, I couldn't pick a single favorite light because it really does depend on the situation. I enjoy all these lights, and they are indeed my favorite for each listed use.