I never really thought about "favorite" flashlight, but more as an EDC light. I am in no way classified as a flashlight collector but more as an "accumulator". I prefer AAA lights, as they are very light and take up the least amount of room, hence an EDC which normally is a Lumintop Tool AAA, but I have other AAA lights that would fit the bill.
I use that light several times a day and need to recharge/replace the eneloop at least weekly. I live in a 125 year old farmhouse that I never got around to adding more lighting, flashlights are just easier, and I am too cheep/lazy to wire in more lights. My wife "stole" my M2R Warrior to scare off the coyotes, before letting out the cat. They really, really don't like strobe.