If anything, despite his history as a fuck up (and Inter affiliation), I'd go for Burdisso. He's coming off his best ever season, was a key man for Roma, has international experience, and is relatively young. Doesn't seem keen to join anyone but those guys, though... Bocchetti is somewhat of an unknown to me, aside from talk of being "promising" some years ago. Being cut loose by Genoa doesn't really say much, and I'd prefer a third choice CB that offers more guarantees.