I'm no flashlight snob, but I do find myself taking on projects that involve working day and night away from any kind of shop. That means flashlights, or DC powered worklights.
For portable flashlights, I tend to use rechargeable led lights. Fenix make a number of cheap, very good flashlights but the LED Lenser flashlights are my go-to*.
Also, Duracell makes a stronger battery that won't leak. You might check those out, particularly in portable radios as well as flashlights.
*
P7R - Leatherman / LED Lenser