I like my film era manual lenses and my modern Sony FE mount manual focus Voigtlander lenses too. I like the more obviously nothing but metal and glass ones but I also like the less visually attractive less tactile ones as I have a thing for inverse snobbery and the underdog
All of these lenses have their charms and some have their own distinctive look too if only at their wider apertures and in how they portray bokeh.
They all have their charms but for me there's no escaping the fact that the modern lenses and coatings are just so good there's really no comparison for technical ability and that goes not only for film era lenses v new lenses but also for DSLR era lenses v new lenses. The look the less technically good lenses give is another matter and that's a part of the appeal.
The modern Voigtlander FE mount lenses I have are interesting. The 50mm f2 APO is IMO outstanding and whilst the 40mm f1.2 has its issues it's still well worth a look. My most used Voigtlander is the 35mm f1.4 which has its critics and many people no doubt wouldn't think of buying one but it has definite charms. These lenses have very good qualities but may well be bettered by the new higher end AF mirrorless lenses but these may be bigger, heavier and a lot more expensive.
I tend to use the modern AF lenses when I'm with other people or otherwise want to be less the geek with the camera and want to get on with things and be quick. I like the manual lenses when I'm by myself or can for some reason take my time. At each focal length I may have several choices from the various makers and it's difficult to choose between them.
If I simply had to choose,
Takina 17mm f3.5.
Minolta Rokkor 24mm f2.8
Minolta Rokkor 35mm f1.8.
Minolta Rokkor 50mm f1.4.
Minolta Rokkor 55mm f1.7 MD.
Minolta Rokkor 85mm f2.
Minolta Rokkor 135mm f2.8.
But I could ignore these...
Vivitar 19mm f3.8.
Nippon Kogaku 50mm f1.4 and f2.
Nikon AI-S 28mm f2.8.
Nikon AI-S 50mm f1.4.
Olympus Zuiko 50mm f1.8 and f1.4.
Sigma 50mm f2.8 1:1 Macro.
Nikon AI-S 85mm f2.
Takumar 28 and 35mm f3.5.
Takumar 50mm f1.4.
And because they're underdogs but IMO either good or interesting...
Chinon 28mm f2.8 and 50mm f1.4.