They did a very good job in terms of casting very attractive people. I think the only people that weren't all that attractive were Bella and Edward. It's a shame that none of the actors had any sort of chemistry with each other. Alice was almost exactly what I expected of her. But it's really, really difficult to mess up a character in the 30 seconds you are allotted for screen time.

I'm still trying to figure out why minor characters got more screen time than the Cullen family.

XD I did read all the books and I am currently reading "The host" and I also watched the film. Stephenie Meyer has a degree on english literature so let's face it she is not exactly dumb. She knows a lot of books, however the "Twilight" series are for young girls, and it's like cocaine, you read and you can't stop, but if you stop to read it again you get bored and it's crap because it has no depth, no meaning. It is an ok serial for teenagers and grown up girls. The scene of vampire that started glowing was gay, but we have to see that Stephenie Meyer is a woman and she writes like a woman, so is nearly impossible for men to enjoy her books.
I disagree with everything you just said. Except for, maybe, the part about it being for young girls.