I don't think this list has any meaning at all. Firstly its totally subjective. Also, you need to considered so many other factors, car, handling, circumstances etc.
Compare Kobi's "mistakes" with Sutil's.
What about Sutil? He was never this consistent before.
Consistently running into other cars 
Err, no... I can only remember one race where Sutil crashed, at the end of the season, but it was raining and he did a hell of a lot overtaking there too. Way to discard half of the season while the FI had a reasonable pace and Sutil would get Q3 and nice points finish every race.
Liuzzi on the other hand, was involved in 90% of the incidents this season. (statistic not made up at all

)