Kamui and Kubica, let's see how good the "top 3" really are when these 2 get involved on equal terms. Those 2 or Rosberg and Perez.
for you maybe, but both Rosberg and Button get caught in 'follow' mode far too often, and Kobayashi looks as good as anyone in the top 3, plus he seems easier to handle from a character point of view. As recognisable to me a future WDC as Senna, Schumacher, Alonso, Hamilton and Vettel were. I don't think Rosberg or Button would fare any better than any of his other team-mates, they might beat him in quali but they very very rarely beat him on the track in the race. I don't think anyone has as good F1 record v team-mates in the current F1 crop.