HELLO I AM PLANNING A CRUISE FOR CHRISTMAS 2016 AND WANTED TO KNOW IF THERE ARE ANY RECOMMENDATIONS OUT THERE FOR A GREAT CHRISTMAS CRUISE - I AM OPEN TO SUGGESTIONS ON LINES LIKE CELEBRITY, PRINCESS, NCL, HOLLAND OR ROYAL.  IF ANYONE HAS TAKEN A CHRISTMAS CRUISE AND HAS SOME ADVISE OR EXPERIENCE THEY WOULD LIKE TO SHARE I WOULD BE GRATEFUL!