This won't be an in-depth review, seeing as I actually have a Chapter-by-Chapter review series on the Warriors Official Forum
, (actually, a lot of this review is repeat of what I said there) but I wanted to do an overall review of the series, so... here I go.
I first got into Warriors when I was 9 years old. Frankly, I loved the series- it got me through the wait for the last two Harry Potter books, and I really got into the characters. The Original Series was great, and I personally thought that the first half of New Prophecy was even better. Around Starlight, though, I started to have to put down whatever book I was currently reading every few chapters, and by the time I reached Power of Three and, later, Omen of the Stars, I was doing it EVERY chapter. Why? Because I kept feeling like characters who were once basically good were being forced down a dark road, and my then-10-year-old brain immediately started thinking up scenarios of what I thought the characters should be doing in their situations. At the time, I credited it to my overactive imagination and my overpowering optimism, but now I'm not so sure.
It was only when I recently finished doing a review of Night Whispers that I realized what the problem was. The characters had taken a back seat to the plot. When you have a series without a set ending in mind, having characters take a back seat to a plot that has only been planned 3 or 4 books in advance is not a good idea. It forces characters that the Erins had set up and made the readers like become total jerks or make illogical decisions just to push the plot along to the point they want it to go. If Warriors wants to continue going on and on indefinitely, the Erins either need to start planning further ahead, or make the characters more important then the plot. At least, I think so. I'm no literature student, so maybe I'm wrong.
That said, I really do like Warriors. I deeply care about the characters, the themes are mature, the prose is pretty darn good, and the Super Editions (due mostly to the fact that they are self-contained stories with planned out plots) are very, very good. The Erins just need to clean up some things before Warriors really becomes a Franchise Zombie