Looking at adding a prime to my bag (all I have now is a Sigma 24-70 2.8). I've been debating between the Sigma 150mm 2.8, Canon 200 2.8L and the Canon 135 2.8 soft focus (my lowball lens selection of the 3). All seem like good glass, all have good reviews, so i'm looking for input from people that have/had these lenses.

