I'd like a deeplying playmaker (Arteta) and destroyer (Wanyama/bender) combo.
Something similar to Pirlo + Vidal
Arteta dictates from deep, stays disciplined and covers the defense. The destroyer can hassle the opposition and help win the ball high up the pitch, ideally he would be physically good enough to get around the pitch quickly and make a difference at both ends.
EDIT: to clarify, I don't envision the destroyer as being the deepest midfielder covering the defense, he would be positioned higher up the pitch so the he can proactively stop attacks.