It would be interesting. Alonso is getting so much praise now he drives a "not so" bad car. I'll wait until that happens with Vettel to make a judgement on who's better. So far, Alonso is more complete.
I'd bloody hope so, he has driven over 100 more races and has probably driven 50,000km more than Seb in an F1 car and in all sorts of cars (top, midfield, crap). I don't think there's much between them (and a couple of others) at the relative point in their careers.
This season is making it easier for the really good drivers to stand out, if they have 2 or 3 tenths on simply a 'good' teammate, then that may mean they're front 2 rows while their teammates are midpack. Last year, Massa could afford to be half second shy of alonso and they'd be 5th and 6th. Now they're 3rd and 17th