I'd go with Fernando Alonso personally. Shumacher is definately a threat but I think Alonso has the edge, as was shown on Sunday. Even when Shuey was gaining on him Alonso still kept him at bay. Lets not forget that Ferrari had done the most testing at Barhain and it was widely expected that they would have some advantage and it was sort of proven. Massa managed to get on the front row but fell away, I think that throughout the course of the season we will see Renault and Honda as the two strongest teams.