Has the OP considered the Mini Maglite Pro LED? They're relatively inexpensive, powered by 2xAA batteries, and come on high (rated 236 lumens) unless the head is deliberately pointed down when turning on, in which case you'll get low (probably around 60 lumens). They're great little flashlights for the money and seem to fit the criteria. If you want something a little more compact, the Maglite XL50 is about 2-inches shorter, powered by 3xAAA batteries, and defaults to high mod (rated 100 lumens) when first turned on. If you want more features then there's also the XL100 with a novel motion controlled interface and the XL200 which uses a series of clicks to activate different modes.
Or if you want the very best of the best, get an HDS Clicky or Rotary and program it so that it defaults to high -- or in the case of Rotary, just turn the dial all the way to right and you'll get high mode every time with the option of easily reducing the output by turning it to the left, no programming required.