Which driver could be Alonso's "Petrov" in Brazil 12?

Which driver could be Alonso's "Petrov" in Brazil 12 and lose him the title??

1. Lewis Hamilton (latest USGP Winner) (10 votes [11.24%])

   Percentage of vote: 11.24%

2. Kimi Raikkonen (Abu Dhabi Winner) (20 votes [22.47%])

   Percentage of vote: 22.47%

3. Jenson Button (2 race wins in 2012) (4 votes [4.49%])

   Percentage of vote: 4.49%

4. Pastor Maldonado (1 race win) (13 votes [14.61%])

   Percentage of vote: 14.61%

5. Romain Grosjean (Multiple podiums) (10 votes [11.24%])

   Percentage of vote: 11.24%

6. Sergio Perez (Multiple Podiums) (6 votes [6.74%])

   Percentage of vote: 6.74%

7. Nico Rosberg (1 race win) (0 votes [0.00%])

   Percentage of vote: 0.00%

8. Michael Schumi (Swansong race) (8 votes [8.99%])

   Percentage of vote: 8.99%

9. Felipe Massa (indirect affect like Safety car) (3 votes [3.37%])

   Percentage of vote: 3.37%

10. Other, or a combination of circumstances!! (5 votes [5.62%])

    Percentage of vote: 5.62%

11. None really, Alonso will win the title! (10 votes [11.24%])

    Percentage of vote: 11.24%