18mm f2.8 - it's my go-to UWA when I want decent sharpness across the frame, AF acceptable.
35mm f2.5 - tiny, pleasing rendering, sharp enough, small max aperture and especially hit & miss AF not so great.
50mm f1.4 MkI - had one & loved it but sold to afford a 24-105 G, bought another because the 55 f1.8 just didn't have the look but acquired a 50 f1.2GM shortly after and it went back in the box. Lovely lens, light, sharp enough, very pleasing rendering, AF not so great but still acceptable.
45 f1.8 - nice lens, decent AF, good rendering, sharp enough. Mine got bashed hard at the front and that's made a mess of the optics.
85 f1.4 MkI - nice rendering, still a favourite. AF a bit hit & miss (especially after a GM) but I love it.
Example with the 18mm
The meeting pool 2 Happy by
Toni Ertl, on Flickr
Example 45 f1.8
The meeting pool 3 Gathered by
Toni Ertl, on Flickr
Example 85 f1.4
The meeting pool 1 Reflection by
Toni Ertl, on Flickr