Just for further reference: you don't need to use any "high profile" features of H.264 for x264 to outperform most other H.264 implementations (Adobe's, Apple's etc.) when they are using all the high profile features available to them.

I find it weird to use a GPL encoder that's had a lot of optimisation work done on it, to undermine an open format where the encoder hasn't had a lot of work done on it. If the format is the key rather than the implementation, then why are so many of them mediocre?