GP2 Asia means very little. But look at how winning GP2 drivers are doing in F1. We’ve seen Hamilton stunning the world. We’ve had Glock doing some good stuff at Toyota once in a while. Hulkenberg is doing OK, Kobayashi is having a good one aswell (keep in mind, in the GP2 main series, he was d’Ambrosio’s teammate, and hardly challenged him), Di Grassi is driving around like a shadow and Petrov is still making stupid moves that cost Renault precious points.
Another thing to keep in mind while comparing the GP2 results of Di Grassi and d’Ambrosio is that Di Grassi was in a rocketship compared to d’Ambrosio’s and Kobayashi’s DAMS, which was/is a dog of a car to drive. Even so, Jerome took it up with Maldonado in Spa this year in what was to me the most spectacular GP2 drive of the year (until his engine died). If Spa is a driver-circuit, as many like to claim, then he has shone where needed.