Strikeouts skews it. I know the theory behind why strikeouts count for more, but even though more balls were put in play against Halladay, only 1 was even remotely squared up on, and it was a harmless liner. Lincecum had 2 no-doubter doubles hit on him. That, and the Braves offense is anemic, whereas the Reds offense was the best in the NL. Halladays was simply a masterpiece!
I appreciate tools like 'game score', but it is just that, a useful tool and nothing more...