I like Rem, too! Always have, ever since the first time she was introduced. I'd love to have her as my Shinigami. xD My favorite characters are probably L and Misa. What I like about Misa is that she's much smarter than she lets on. Mello is also cool too. But yes, I agree. All of the characters are very well developed.
I prefer books, too. ^_^ In fact, pretty much the only way I'll read a manga is if I really like the anime, haha.
Thanks! I went and saw Ender's Game at the movies today. It's amazing! Have you heard of it?