I agree completely with js. I prefer the white. They do have a bit of that "angry blue Nichia" tone to them, but it really isn't distracting at all. Plus I think it gives a different hue to the beam when the incan is on. The incan is whiter than most other incans of this physical size that I have tried, even with the blue-ish LEDs. The tone is not as bad as many other 5mm Nichias I've seen.
I think the Aviatrix with one red and two white LED's is probably the MOST useful setup in terms of a mod. Low, low level red output for preserving night vision (even better than stock), two white LEDs for more intricate work where only low-levels are needed (and the white LEDs will better work with your depth perception than most of the colored LEDs), and then the full-bore incan.
In terms of a stock A2, though, I would say the WH is the best all-around light (EDC, bedside/nightstand, defensive, etc.), followed by Y/G, then red. YMMV