The library at my school didn't have the entire collection of the Animorphs (which is so stupid, seriously), so I haven't gotten the chance to read all of them. But of the ones I did get to read, I agree with whoever said that there should've been the other Animorphs perspectives in the very first book. I would've liked to know what they were all thinking when there was a spaceship landing in an abandoned construction site--especially Marco, because point of view is interesting and makes me laugh out loud. I remember way, way, way back in elementary school, I was reading a Marco-perspective Animorphs book and I snorted loudly and everyone turns to me and look at me like I'm crazy. Good times...good times.
I would've liked to see more Ax, too. It seemed as if every time he narrated, I became enlightened on human nature. And this brings me to my pet peeve: Why, oh why did they never explain to Ax why humans wear clothing? I mean, really? Every time he asked they beat around the bush. Ax is all like, "Why ya gotta wear clothes, earthlings?" and they're all, "Cuz we're humans, yo!" Just explain it to him!!!