Whose Turn Is It? (Mailbag #4)

From the mailbag::

I know some people who feel quite strongly about keeping to the main character's POV except when it's absolutely necessary to go to someone else, but I've also seen that rule (like so many others!)broken successfully. It can be so useful to show someone else reacting to the MC.

Any guidelines on choosing? I keep having to write these scenes in more than one version to see which is the right way.

OK, first off, single-character-viewpoint tight-third-person is one kind of...