Hamilton is the faster driver, but Button has been able to make more of his situation.
In Australia, HAM was better, and in Bahrain, quite a lot better. But in the other races, slight edge for Button, mostly because of his race sundays.
In my database, their average is the same (7.6), HAM has a slight advantage in consistency, but I feel BUT did better in Malaysia and China than HAM in any race of the season.
Rosberg is hurting in the ranking because of the tough day he had in China, for which I gave him a 5. He showed a learning curve in the last race, compared to Bahrain. Sutil has had real bad luck and possibly would have finished in front of Di Resta in some of the last races. He has had no bad weekend yet (a 6.5 in China was the lowest in my database), contrary to Rosberg.
In general driving ability, this would not be my ranking at all. ALO would lead VET, but his unfortunate weekend in Malaysia is still hunting him.
The ‘problem’ with these lists based on an average score of all races, is that it does not properly reflect the current form. For instance: Gutierrez, Chilton and Van der Garde are still at the bottom of the sheets because they started the season very poor, but last race(s) they were very decent at least. The difference between these three and Bianchi (who is 12th in your list) is diminishing.
True, @matthijs, but my list is only 70% average scores, 15% current form (last three races) and 15% best three races, so it does take that into account. And truth be said, VDG had a pretty bad weekend in Germany, only two races ago. And Gutierrez has a problem with consistency. Even when he shows some good moments in a weekend, there all almost always things that weigh against him (in Spa, qualifying and penalty in the race).
I’d love to compute F1 Fanatics views this way after each race, giving weekend grades from 0-10, probably excluding the best and worst 5% of grades to get a good picture (without exaggerate haters or lovers), and have such a ranking over the season…