I have always read and have been told 3/4 front 1/4 rear. I conscientiously practice this when I ride. Today a rather large man wearing an iPod stepped off the curb (he had a red light) in to the center of a slight down hill curve. Instinctively I jammed on the back brake and started to skid and the bike started to kick out from me. I released the brake immediately, aimed for 250+ pounds of clueless hoping he would just keep on moving and was able to straighten the bike out barley missing the guy. He had no clue.
Front brake, front brake, front brake!!! Hopefully this will drive it home for me.