Favorite legacy lens to use on Micro 43?

Zeiss 35mm 1.4 - beautiful results wide open.

Leica Apo-Telyt 180mm 3.4 - bitingly sharp.

Leica Macro-Elmarit 60mm 2.8 - Just wow...

Others which give very good results, but I use them less because of their FL or because they are covered pretty well by native MFT lenses or the above:

Zeiss 85mm 2.8

Leica Elmarit 90mm 2.8

Leica Tele-Elmarit 90mm 2.8

Leica Summicron 90mm 2.0

Leica 250mm 4.0

Zeiss 200mm 4.0

Enna 240mm 4.5 - a true pocket tele and quite decent

A whole gaggle of lenses around 50mm, many of which do very well, but I find the Oly 45mm much more practical...

A whole bunch of other lenses as well, but many don't give the results that these do, and using a huge ultrawide to get a 30 or 40mm equivalent doesn't  make sense either.