There is something about target fixation with the blinking at night and people actually unconsously moving toward you.
Everything I've seen in real life contradicts that.
I run my brightest taillight flashing. And my next-brightest, and my next-brightest, and my next-brightest. And the remaining two as well. At night on the divided highway, I can watch overtaking traffic in my helmet mirror, and if six flashing taillights (including a DiNotte 140 or Nova BULL, two SuperFlashes, a BRT-5 and Trek bar-plug blinkies) isn't enough to cause target fixation, it just isn't going to happen.
What happens instead, is people merge to the left lane to get away from... whatever it is on the shoulder with six flashing red lights attached to it...
it's a, uh... uh... OH, it's a crazy dude on a bicycle!!! 
On the highway, they're often doing that at 1/4 mile range, particularly the semi drivers.
Anyway, to the OP: assuming you ride on the road and not on a MUP, run your brightest one on flashing. What you need most, is to differentiate yourself from everything else so you don't blend in. Flashing lights do that.