As both a biker and driver, at stop signs I think it's a huge increase in visibility to have a front blinking light that's bright enough to be seen, but not so bright it's overwhelmingly obnoxious.

A steady front light is needed for seeing the road, but when on the road it can get lost in the visual noise. A blinking front light always stands out as saying "I'm a moving vehicle".

I've seen a lot of people with the Planet Bike lights -
http://www.amazon.com/Planet-Bike-Bl...net+bike+light

Just saying that in my opinion, for stopsigns and intersections where there's a lot going on, side visibility is nice, but I think a blinking front light is even more useful.