You don't think the Yanks can drop 3 straight to start the year? Have you seen their lineup? Put A-Rod in their and you have a bunch of guys past their prime. Posada, Matsui, Jeter, Damon. Not to mention they have Gardner in center for now until they realize the kid isn't that good yet. Aside from that you have the Yanks who start slow often only to turn it on in May and June.
Save your money, even if they win one it won't be worth the anxiety and with how overvalued they are every year you are better off fading them until A-Rod comes back.