Nowadays there are quit a few single seater feeder series about, and still new ones are starting up so it becomes hard to see the forest because the trees are in the way. Is it possible to rank them. I would say GP2 is the top feeder serie, I don't think there's much discussion about that, but then who's next?
GP3, F2, F3, WS3.5, ...

Any thoughts on that one?

I would say the order is:

GP2
F2
GP3
WS. 3.5
F3

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I would put F3 higher, aren't drivers like Senna, Prost and Vettel rooting from there?

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"I have beaten top drivers such as Raikkonen, Massa and Webber as teammates" (Nick Heidfeld)

Indeed - quite a number of the biggest stars came from F3 directly into F1. But these days it seems every series can be the birth place of the next F1 dominator.

I must admit that 15 years of no regular reading of the specialist press have made me somewhat ignorant to the vices and virtues of the many feeder formulas. But whereas the ladder F3, F2, F1 was easy to understand, even before I began reading the English racing magazines (no such thing in Denmark, only a few motor sport pages near the end of the car magazines - it has been like that almost all the time during the 40 years I've been interested in motor racing), today we have a labyrinth of one-make series (yes, we used to have FFord, FVee and FRenault, but those were entry level single-seaters), some of them branded by a car manufacturer, others by more or less mysterious names like GP3 or QXL5.

In principle, it would benefit racing to have a more transparent feeder formula format, but a lot of people are making a living from the present chaos, so I guess we'll have to live with it - and accept that no feeder formula is better than its most recent star to have arrived in F1. A bit like cycle races - they grow in prestige when great riders win and lose prestige when lesser riders cross the line first.

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