Personally I really have a weak spot for flashlights with a side-by-side battery compartment.
To me this design pattern looks great. The form factor also allows for multiple LEDs (e.g. white-red, or spot and flood).
Hopefully Manker can add a new similar side-by-side design.

Nitecore MT22A (2xAA)
Sunwayman D20A (2xAA)
Frelux Synergy1 (2xAAA)

Pelican 3415 (3xAA)
Acebeam uc15 (2xAAA)
Streamlight Sidewinder (2xAA)

Edit: Also an iconal design side-by-side cell light is the Cool Fall Spy 007 (2x CR123A).