Have decided to re-read the entire series. Will not change the original star ratings, but will include my updated star ratings in the wall o' text.

4 stars
The first time I read this, way back in high school, I remember thinking that it just wasn't as good as #1. When I read through the first part of the series again before reading #5, I remember thinking #2 might just be my favorite. This time, I know already it won't be my favorite of the series, but it's a huge improvement over #1, as there's actually a plot.