Well given that Conte has put together this side and won us the league unbeaten last year I'm inclined to think that he is the best judge of character as to whether someone is right for the team or not.
Also Balotelli would probably be too disruptive and Paulinho wouldn't get into our midfield.
Besides Anelka and Lopez there's not really any other realistic options out there, although I would love Icardi to arrive but I think if that ever did happen it would be one for the summer.