Since I definitely have my edc covered by what's in my pockets already(all 3 sized Quark mini's, the new NiteCore IFE1, a NiteCore D10, and a Maratac AAA stainless)....I would pick my JetBeam JET-lll M R2. I have an 18650 in it and on high at 250 lumen, it does 3 hours. On low at 2 lumen, it does 200 hours. The low is user definable, so I can do anything in between 2 and 250 lumen. The thing is tough as nails, so it could stand up in any situation I'd have to take it in to.