he's crap, he cant defend, wins fk all in the air from long balls and is positionally the worst centre half of the lot of them. He literally goes walk about.
But villa fans, as thick as most of them are when rating players just think he's a beast cos he runs fast, is built like a tank and has a worldy video on youtube against fernando torres.
Unfortunately there is more to central defending then running quick and knocking strikers off the ball, but then again that's what looks good on the highlights reel.