Book-wise, Harry Potter totally trumps Twilight. I reluctantly admit that I got caught up in the whole Twilight craze back in 6th grade, but now, I think I've grown up a little bit more......
Movie-wise, I.... don't really care for either series.... But that might be biased since I prefer literature....
Also, I hate the fact that whenever I say I like twilight (the TIME), people think I mean Twilight the book. So I've grown an aversion to the word.
And the errors in that book. Ugh.
So, HP.