The best flashlight is the FourSevens Quark Turbo QB2A.
I chose this flashlight because everybody should have a powerful, general use flashlight powered by common AA batteries at home in case of emergency. Whether you live in a house or a high-rise apartment building, a dependable flashlight could literally help save your life. They’re also just really handy - a tool you never realized you’d use so much until you have a good one.
FourSevens offers many other flashlights for many different uses. All are good. Pick the best for your needs.