We went to Aruba.
One of these years we're going back.
Word of warning: If you're planning on changing your name and you're leaving for your honeymoon right after your wedding, book your travel under your current / maiden name. This is especially true if you're traveling internationally - it takes FOREVER to change a name on a passport.
We booked our hotel room under my maiden name, because we were using my frequent-guest points. For our entire honeymoon, we were Mr. and Mrs. aephialumsmaidenname. My husband was less than thrilled.