In terms of strength Alonso - Button seems very-very similar to Hamilton - Rosberg. In my view there is not much difference between Alonso and Hamilton in overall level, same with Rosberg and Button. So there you go.

So these two line-ups are now the joint best driver line-up on the grid. A year ago Vettel-Räikkönen would have been up there as well, but now there are a fair amount of questionmarks.

In any case, let's see if Button can fare better against Alonso than Fisichella, Massa or Räikkönen did. The plus side is that this battle takes place in McLaren and not Ferrari or Renault, which means team dynamics and car characteristics are slightly different.