I've read a lot about Twilight on these forums, and I rarely post, so I thought I'd just have to give my opinion on the matter.
First off: I am a 24 year old male whose only reason for ever even looking at Twilight in the first place was because of my girlfriend. To please her, and to also satiate my curiosity, I borrowed the books off her and read them all. Obviously, regardless of whether I actually like the books or not, I had to go and watch the film, too.
So, what do I think of Twilight? I'm neither an English teacher nor am I a philosopher but, if something can keep my attention enough to make me want to read/watch/play more, then it's entertaining. The Twilight series managed that for me. How good is it's writing style? I don't know, nor do I care. What I do know is that it worked for me, and like most good books, leaves you wanting to read more. To see what happens next. This has worked for nearly every book I have read, and whilst I've not read much that defers from 'popular' (Stephen King, JK Rowling, Tolkein, Koontz, Austen and more famous names...) I would certainly consider myself to be open-minded and experimental when it comes to reading material.
Whilst it was painful at first to read "His beauty made my heart melt" (not an actual quote, just something just as sickly), I quickly got over it. I realised that right here, was a writer willing to risk the wrath of so many horror fans by blatantly redesigning vampires. I both admire producing work that is by-the-book, yet completely unoriginal and excruciatingly predictable, but of such high quality to warrant not caring about it's originality, to admiring something 'revolutionary'. Now I wouldn't call Twilight revolutionary but Meyer definitely receives some brownie points from me for trying. On the predictability side of things, apart from the truly obvious (like Bella and Edward reuniting) there really wasn't that much I could have foreseen. Bob may call the Breaking Dawn plot ridiculous, but I thought it not only made sense (within the Twilight world) but also became quite dramatic towards the end, albeit a little over the top (read: gathering of super-power Vampires).
As for the films, compared to a few book>film creations out there, Twilight's run has been fairly good. The "I'm hotter than you" line, if I'm not mistaken, is just plain Hollywood tripe, slung in for maybe a cheap laugh or..something; either way, I don't think it's in the book and I will cringe horribly when Jacob delivers that line in the cinema.
Also, because it's late and I felt the need to write something: yes, like a few here, I think Meyer definitely did NOT intend for any of her books to be so utterly reverse-engineered to the point that critics like Bob have essentially crafted a conspiracy theory from it. That is to say, that young women across the world are being taught to find a man, marry him, THEN have sex.
To add on, when something is entertaining, why look too deep into it? Just enjoy it. We can't all be so paranoid to think that 'good' things actually disguise a deeper, potentially dangerous intention.
Then again, it's people like Bob whose job it is to look deeper into things in order to give us something interesting to read and to differentiate from the horde of other by-the-book critics.
Rant off.