I remember I was asking in 2012 whether that season indicated that driver again matters more, because we saw some big gaps between team-mates. particularly Alonso v Massa early in the year.
In 2013 we again have some big gaps. Let's look at five top teams. Only Rosberg is reasonably close, all others are far away. It probably indicates that all the best drivers have been distributed across different teams, so we are really missing a hot in-team contest. Like we had in 2007 in both McLaren and Ferrari. In 2009 neither Barrichello nor Webber were far from their team-mates either.
%-wise points scored of their team-mates in the first five teams. Bottom three aren't even within 50%.
All this makes the driver v driver battle threads quite meaningless. The only ones to discuss anything about are Force India and Toro Rosso pairings. Though in Force India Sutil's % is a modest 69,4% too, but at least on track the drivers look close.