So there's this Swedish journalist, blogger, program leader and commentator who posts these things from time to time. He has something called the quotient, it is based on adding goals and assists minus the penalties per minutes played and he gets this number. Here's his updated list from today:
1. Edinson Cavani. Napoli (URU) 9+3**12 10.38
2. Milos Krasic. Juventus (SER) 4+5**9 10.29
3. Sergio Pellisier. Chievo (ITA) 6 + 4**10*(1) 9.97
4. Zlatan Ibrahimovic. Milan (SVE) 8+6**14*(2) 9.81
5. Stefano Mauri. Lazio (ITA) 3+7*10 9.02
6. Fabio Quagliarella. Juventus (ITA) 8 + 2**10 8.53
7. Marco Di Vaio. Bologna (ITA) 8+2**10 7.94
8. Ezequiel Lavezzi. Napoli (ARG) 4+6*10 7.91
9. Andrea Cossu. Cagliari (ITA) 0+9**9 7.28
10. Samuel Eto’o. Inter (KAM) 9 + 2**11*(3) 6.97
11. Antonio Di Natale. Udinese (ITA) 9+0**9*(2) 6.09