hub-bub, with the hyphen, gets 5,720 hits on Google

O my darlin'....that don't mean it's right! If you Google "Artic" you get 327,000 hits (and a little note saying, "Did you mean ARCTIC?"!) Google the kerrect spelling, Arctic, and you get 3,120,000 hits.

Proportions pretty close to what you get for hub-bub and hubbub, doncha think? but in each case, the former is WRONG, dagnabbit!

Which is my verbose way of saying: I vote for Number One!