Absolute Brightest C8/C12 as of 6-16-13

LED Flashlights – General Info 18650 Flashlights
12

The XinTD from IO is pretty darn bright, listed here: http://intl-outdoor.com/xintd-c8-v4-xml2-t6-18650-flashlight-p-308.html

I think Foy reviewed one here: Review: XinTD C8 SC-82/V4 (3C neutral white)