here is another quick shot, this happens to me very often:
in XML file you have a big tag section, with a comment on top, like this:
comes my big code block
so I can conveniently mark the block via ctrl-w (great feature!!) but I lack the comment. If I want to cut / paste the block for example, I surely want to also take the comment with it. It is not possible to extend the seletion via ctrl-w to inlcude the comment.