Graham Hunter never gets anything right, I'm taking his comments with a massive pinch of salt.
I don't think Ramos would look world class over here, it's a very different game in England and I somewhat agree with the David Luiz comparison.
Hes a world class centre back whos won everything there is to win. Its easy to talk him down because rivals are signing him but he'd be a very good signing even if he will be expensive. No doubt he would improve them them alot at the back and is probably exactly what they need. I still doubt RMA would let him go and if they did he wouldn't be cheap hopefully.
Most of the trophies he won came at fullback. The truly great central defenders read the game masterfully, and in that context Ramos is dyslexic.