I have the 8'10" Creek and love it. Can't fault it so far, great fun board, really well finished and looks fantastic. I have been really nasty to it already and it appears bulletproof.
I haven't owned or surfed a Spitfire, but do have a SMIK custom and the construction and finish are excellent.
I would always reach for the Creek first, there is something I love about these Balsa boards, the flex, and the real connection to the wave.