Oh. I didn't see this thread. I wouldn't have wasted my opinion on other Brawn threads! 
Hamilton is better. I don't like Button. I never have. Perhaps I would've liked him if I started watching in his BAR days. He reminds me of an annoying pom at work. 
But, I think Lewis Hamilton's doing quite good in a "mediocre" (still bad - Jensonb
) car. I think Button could've done much better in his Honda days. 
I must ask why you think that is. Sixth place in the only good car that Honda gave him is very respectable - he even kept it on track to win a race during that year. The other two cars were no better than backmarker-quality, really.
So what? Barichello finished third. (Okay, so that was an unusual Grand Prix.) But, only one points finish, compare to Barichello's podium.
2007 I only watched the European races. However, hats off to Jenson for this year's performance.
This is, however, an unusual season. You cannot say that Jenson is better, because Brawn had an advantage. Jenson Button has to win the WDC, because he has the best car. Look at Hamilton who one the championship in the second best car, with only one retirement, and the whole world against him.