Bilbo for me
I really want to have at least 1 ringwraith... I really like the way they look and I think they'd look awesome in 1/6!
Also, we need some bad guys to flesh out the line, I'd have much rather seen a Nazgul or Sauruman then Faramir (sorry capn' )
Merry and Pippin because the COMPLETE fellowship is top priority over any other characters for me.