There has been a mint 85 2.8 Rollei/Zeiss QBM over on Fredmiranda's board for some time now, also supposed to be a really good lens. Compact and cheap. The fellow also had the 25 2.8 (sold) but still has a 50 1.4 and 200 F4 along with the 85. Really nice lenses, used to be tricky to adapt to EOS but newer adapters seem to have solved the issue.
I owned the Contax 85/1.4 about ten years ago and it was very nice, wish I'd kept it considering what I sold it for. Now I have the aforementioned Canon and am very happy with it. I would say it's a wash for size/weight between the two.