Thanks everyone! My hearts want the 85L to be honest, but the AF is just too slow. But I also want a f/1.2 lens, that's why I am playing with the idea of having a 50L.
the difference between 1.4 and 1.2 is not as great as everyone thinks. Unless you are at the absolute limits of 1.4, 1.2 is only 1/3 stop faster.
I have both and am probably going to get rid of the 50L soon. it's a little too close to the 35L, and it's IQ isn't as good, so I don't use it often. other than using it as a bragging unit, i'd rather just use the 50 1.8 if I really ever need 50mm. now the 85 1.2, that's another story... however, the sigma 85 is very tempting as well. awesome performance which might even surpass the 85L from 1.4 and up.