I really should be looking at SQUEAKY, since a lot of people seem to think it's my most marketable work. But I'm going by the list, people. The list!!
Just a heads up, I recently finished reading ACROSS THE UNIVERSE and HEX HALL, each book 1 in a series. I loved them both, but found the latter a lot easier to get through. I loved the voice of Sophie in Hex Hall - she cracked me up on many occasions. As for Amy and Across the Universe, I definitely found that book to have more substance, and to touch on much deeper issues. But I can't say I liked it better than Hex Hall, which was pure entertainment. However, I don't condone stealing other girls' boyfriends. :P Currently I'm reading CITY OF BONES by Cassandra Clare. So many series, so few sequels to get on with reading. :P (Yes, I need to order some more books)
You can check out my book reviews here (beware of spoilers).