Which do you guys prefer? I personally would like all of the same covers as the one which is on Pretties. Now I know that I am not the only one that has cover issues with books. It's bad enough that two of my Harry Potter books are in paperback rather than hardback never mind a book with an entirely different cover! My boyfriend, who isn't a massive reader, is currently frustrated that he bought his Harry Potter and the Half Blood Prince copy in the adult edition rather than the UK kids edition (like the rest of his books).
I find it frustrating too. They don't look as nice on the shelf if they're not all matching. It doesn't feel like the series is complete but I can guarantee that I will buy the other cover of Uglies whenever I find it. This does mean though that the one cover will be up for a giveaway for you guys :).
What is your opinion on purchasing a book in the same series but with different covers?