In 2008 he had a slam, olympic bronze, and a YEC. So it depends if you value slam finals over those things.
It's rather subjective which combination is more important – two major finals vs WTF and bronze. However, looking at the tier below that:
In 2008 - he won two Masters and had one other finals appearance
This year he won two Masters and had three other finals appearances; he's also within striking distance of the #1 ranking