Rafa vs Nole for #1 at the French

After seeing both of them playing in the early rounds of the French Open I expect to see them face off in the final.  Anything can happen on the way to that point, but let me say that it is a relatively safe bet to say that both will make it to the final rounds.  Who is my choice for the win?  I see the stars lining up for Nole this year based on his recent wins against Rafa and also knowing that Rafa is playing injured with a nagging back problem.