I rate wilshere extremely highly, his part in arshavin goal against barca typifies him, he is a rare few who know what they will do before the ball comes to them and are able to execute however, his injury hit season and inconsistent stats prove he is still a youngster and shouldnt be a given starter, but obviously more often than not he will play.
I would want a hard working midfield who will cover ground and win the ball back. Then a playmaker who can pick out the runs of podolski walcott and robin ala inter under mourinho.
Also wilshere is not under rated, he is seen by many, even opposition fans, as the golden boy of the new generation of england (style) and arsenal.