I don't think we should be so harsh on SGC, one of the most entertaining parts of this forum!
I can certainly see where the Gareth Barry comparisons are coming from, there are similarities. There are differences though and I think Clark will become a very good centre defender rather than a defensive midfielder in the long term. He can do a job there if needs be.
I'm huge Bannan fan but if you were to ask me which was most likely to really make it over each of the last 3 pre-seasons I would have gone for Clark over him, Bannan, Albrighton and The Fonz.