I unclip right because my right foot is a little smarter than my left.I also prefer the feeling of leaning AWAY from traffic. I did my first clipless fall in the parking lot of the Velodrome as all the Sunday rides were organizing. I had practiced in the cemetary next door so only the dead would laugh. But no, the gods scheduled my fall in front of as many riders as possible. The gods think they are funny.
Just make sure you "tuck" when you go down. I got hurt because my knee stuck herself out to help.