I see and agree with the larger point he's making, but a 42% increase in a single generation strikes me as huge, not just "decent."

And this?

If you want a device that delivers maximum battery life for light web browsing, there's no question that you should get something with an Apple logo on it.

Except the top two champs on the Anandtech chart - champs which are way ahead of a fairly close pack - don't have such logos. If one is honestly trying to illustrate the simple point that Windows has a power problem, its a strange conclusion to draw.