I have a choice to make about what I want as a "normal" lens
A Schneider Symmar-S 5.6/180mm
or
Fujinon-w 6.8 150mm
I have used the Schneider a few times but have just taken the Fujinon as partial payment on a debt and have not used it yet.

I have two rail cameras and am going to sell one but the buyer wants a lens too so I need to decide which one to keep and which to sell with the camera???

What are some of the things I need to consider?