You want my honest opinion? Too bad, you get it anyway.
I don't think it matters much. They all produce about the same results for 95% of the people using them. Conversely, 95% of the people using them that have strong opinion about one (or more of them) couldn't pick their favorite out of a pile of pics taken by someone else using different lenses. Put another way, shots from different lenses printed out @ 16x24" and viewed at proper viewing distance would be very hard to tell apart.
Now I'm not saying that in a derogatory way. There's more to how you think a lens performs than what it can actually produce. Much of it is how a lens looks/feels/handles as well as the type of image it produces.
Personally, I never bonded with my SEL16. The lens just did nothing for me. Most of the pics I shot with it were fine, but as a piece of gear I'd use it just wasn't happening so I sold it and bought a CV15.
This has lead to me picking up a CV21 and a CV35 as well. I'll probably eventually get the whole line up of CV screw mount lenses because I like the way they look and feel on the camera, their incredibly small size and the way the render pics works for me. Are they perfect? No way. I have to do an incredible amount of post processing with the wide angle ones that I wouldn't need to do with SLR lenses. I've decided I can live with that to get the size/handling that the CV lenses can provide.
Stepping off my soapbox I'll leave it to others more knowledgeable than I about 50ish/1.4 lenses to make recommendations, especially since I don't even own one.