An interesting one.
He's clearly very consisten at his attacking play. While some have, at times, criticised his delivery; I think you'd have to go a pretty long way to find someone who is as consistent with his crosses. Especially his aerial ones. Bale is lauded for his delivery but he's generally playing at along the ground where there's considerably more margin for error.
Baines has a great engine which enables him to contiually get to the bye-line even into injury time as his involvements in the Utd goals, the Newcastle chances and the Birmingham goal show even just this season.
He's a crucial part of our team as he's the only player that has pace and directness out wide.
Defensivley he's weak against people who run at him with pace, which is odd, but given his size he's actually very good at some of the points that you might think he was weak at, such as you rarely see him beaten at the far post by players that are bigger than him.
Overall he's a very good player, certainly up there with the best in the league. Maybe not Ashley Cole but Clichy, Evra and er.... well that's it really.