You can see already different strategies;
Transat AG2R La Mondiale 2010
Jeanne, on the West, is going for the wind. She is making at least more half a knot than everybody, except Miguel Danet that has chosen the same option and is close behind. It looks to me a good choice. They have more wind in front, compared to the main pack.
Richard Ledee (on the East) has chosen the opposite: The rhumb line, the shortest distance, but he is going to run out of wind. Not looking good for him.