Cassano no doubt. More gifted, better vision more deadly in the area. You'd think with Zlatans height he should be a awesome header but he isn't so not even that tops Cassanos archive on what he is better at.
I find this question rather hard to answer. Zlatan has not even played a full season in the Serie A yet, so we are not quite sure of his potential. Thus far he looks very good, being our most important forward, however Cassano was better last season.