I'm usually so close to my subjects that I don't think about DOF characteristics. I try and keep my exposure near the middle of the range, so that I'm not screwing with the filter wheel to get f-this or f-that.
Your question seems more for people who use fixed aperture lenses, not us. It's like asking if I prefer the REC button on the lens grip, or on the camera body. Whatever works for a particular situation.
Howzaboot a harder question, like:
Will the move to disc- and RAM-based
cameras have any environmental effect
on our planet?
OR:
Would Side Letter Eleven be better art if
created with a broader color palette
and higher resolution graphics?
Tawlk amongst yaselves. Discuss.