Harding is still my favourite player because of his sheer comittment he gives in a Saints shirt. He's a good left back, not the best, but I always feel comfortable when I see his name on the team sheet.
I've yet to see Fox, but I think he'd have to go a long way to displace Harding. I feel sorry for Dickson though, but it does seem like his time here is numbered.
If Fox is better going forward, I still think he should be moved further up - after all, Lallana can play anywhere - I'd like to see Adam as a support striker to Lambert - I think he's got the brain for it.