GSP vs. Anderson Silva, who wins?

IMHO, I think that Anderson Silva has this no questions asked. The only thing I believe GSP has on Anderson is his superior wrestling, but Anderson has a black belt in bjj, giving him great ground defense. Anderson's standup is hard to beat because of his unorthodoxed style and long reach, plus his mui tai clench. I like both fighters, but I'm looking at the whole picture, what do you think?