Santa or Elf?

In preparation of Christmas 2014, I bought this onesie for Speck.  Now I just have to decided what hat to go along with it.  Santa or Elf?  Lucas says Santa cause of what it says but I'm thinking Elf cause it would be funny.  Plus we all have Santa hats, so Elf hat would make him unique.  Good thing I have a whole year to decide!