if you can be patient while KD packs and ships my K106 to me, i can do a comparison for you, it's been ages and ages (well, actually i ordered it on the 6th or 7th of July but checking the status of my order many times a day makes time go by so slowly).
the advantage (in my eyes its an advantage) that the K106 has over the Romisen RC N3 II Q5 is that it has 3 modes instead of 2, and each mode is programmable to the output level that you choose instead of it being preset. However, 2xAAs usually have longer runtime than 1xAA lights and to be honest, i find 2xAA lights easier to operate.
The RC N3 can also run on RCR123s and is extremely bright, getting an Ultrafire WF-139 charger and 2xRCR123s from either AW or some other online dealer makes this a guilt free light AND gives you options to have a small light with you for those times when a 2xAA might be too bulky.
Another alternate is (and i have just ordered 2) the stainless steel 5 mode Ultrafire C3 from DX.