Bottom line is that no other lens is like this, 35mm f/1.4L is better at all apertures than the 35 f/2, and the 85 f/1.2L is better at all apertures than the 1.8. The 50L is not that compared to the 1.4.
Agreed! I bought the 35L and shortly thereafter sold my f/2. Bought the 85L II and sold my 1.8. Bought the 50L, and ... sold the 50L. I do understand why some people love it, gorgeous bokeh - every pic I took with it looked amazing as a thumbnail or at web resolution, but when I'd pixel peep the sweet spot of the in-focus area of the razor thin DOF, it went from blur to almost sharp, and back to blur - but never really hit it.
I'm curious if, out of the people who love the 50L, any of them also have the 85L II. To me, that one is what f/1.2 sharpness is supposed to look like. I reaaalllly wanted to love the 50L, pined over it for more than a year before taking the plunge - perhaps I would've felt differently about it if I wasn't comparing it to the 85 already in my bag.