The size of the film, the camera itself, is only a small part of the process. Just having a larger negative doesn't automatically make a better picture.
I have all size of format options available to me, but not every size or every camera in a size, have the same advantages. Choosing which camera/format/size is a result of what my expectations are for the combo.

I will say, all things being equal, I like larger negatives. JMHO