Dwig
Well-known
Not sure about ones to avoid...
I suppose that just about any lens that was supplied as part of an enlarger kit would be of lower quality than the Big 3 enlarger lens makers. Voss & Omegaron come to mind. ...
Voss and Omegaron are definite ones to avoid. The Ico lens that came with my old Durst RS-35 back in the '60s was a dog (OK, saying that is an insult to dogs, sorry), and so was the Wollensack 50mm f/6.3 that was on my dad's old Federal enlarger. Also, for most use skip the Schneider lenses with "a" in their name (Componar & Comparon); stick to all "o"s (Componon and preferably the newer Componon-S)
I've personally used Schneider Componons, Vivitar VHE (Schneider Componon-S lenses with single layer coating instead of multi-coating), and EL-Nikkors. My pet was the EL-Nikkor 50mm f/2.8. The f/4.0 is good but the f/2.8 is slightly better in theory and vastly better in practice (brighter and easier to focus).
I've heard great things about the Rodagons, particularily the APO. Also, there have apparently been some top drawer Fujinons. I've never used one, but hear the occasional report that they are excellent, which is something a Fujinon is quite capable of being.