Has to be Berbatov for me. Yep, he had a slow start but what do you expect? He came from a completely different league in a different country where the style of play is almost the opposite. He's completely sussed out the English game now and 19 goals (and counting) isn't bad, along with 14 assists in his first season over here.
Dawson comes a close second, our most consistent player who should definately feature in the England squad more regularly. He's not reliant on King any more like he was last season. It shows how much he's developed.