Not a huge Honda fan (except for the RC45), but damn, I love the Castrol racing scheme... I loved it when 1990 Toyota Celica GT-Four's wore this in WRC back in the days, and I also absolutely adored the RC-45s in Castrol colors, ridden by Fogarty, Kocinski, Slight, and Edwards.
For 2011, I'm torn between rooting for Haga / Camier on the RSV4, Rea on the 1000RR, and Laverty on the R1!