Agree, Russell Brand, or Graham Norton, Vernon whatsisname or Ant n Dec. Ruinous choices, any of these. The host is far too important to let just anyone do it.
Graham Norton. He's too "me me me!" for Strictly. It needs someone old school, like Bruce Forsyth, not someone who slips smutty innudendo into every single intro.
I love rude jokes, but there's a time and a place for them.