what do you guys think of the acts in metal gear solid 4?

Donnie Bolio: Act 1 - 7Act 2 - 8 Act 3 - 9 Act 4 - 10Act 5 - 10

Anibal Scheid: i would also like to know which acts are the hard and which are easy. It would be great if you could answer with a scale from 1-10. Thanks