Well if Vika can play well (like defend Doha) and then go deep in Indian Wells and Miami she has nothing to defend there either so it would be very close. Clay season is similar (Stuttgart final v. Rome final) but I see NaNa doing better than Vika there. Now that I'm thinking about it though it could be very interesting if they both play well, or have similar results. Basically NaNa's only advantage though is Doha, so that will be kind of key for Vika to keep within striking distance.
My number one: Victoria Azarenka
ATP: Novak Djoković
Crazy Frenchies! Gilles Simon Alizé Cornet