I'm probably going to get shot down for this but here goes anyway.
Schumacher is certainly talented, that cannot be questioned, however....does no-one else think that part of his success could be attributed to his lack of real compitition? For example the top 10 in 1999 were (in no real order): Frentzen, Irvine, Barrichello, Fisichella, Coulthard, Herbert, Mika Salo, Verstappen, Ralph Scumacher and finally Michael.
In comparison at the moment he's competing with the likes of Alonso, Hamilton, Vettel, Rosberg, Kubica, Massa, Button and Webber. Had these great drivers been around in Schueys hay day might things have been different? I think so! Putting aside the fact that his car isn't great this season I think that theres no way he'd win 7 world championships against the caliber of drivers this season.
I think he's made a mistake returning to F1 it's going to make everyone question how good a driver he actually is.
Anyway that's two cents.....discuss!