I work with vector shapes very often in Photoshop. In CS6, they have added the stroke and fill tools in the option bar.
If I open a file with vector shapes that was created in CS5, the stroke defaults to 3pt. I would prefer it to default to pixels instead of points. I have found that if I change the settings prior to creating a new shape, it retains those attributes for all future shapes. However, if I am working on an older file, and would like to use this tool, it is frustrating to have to change this unit every time.