[quote=Dedonus]
I haven't read the books (or if I have read a few in my childhood, I don't really recall any), so I obviously can't have a favorite. 
[/quote]

We need to get you hooked. 

Honestly, I always liked the Andalite Chronicles, as well as the Elimist Chronicles. For some reason, they stood out to me much more than the normal books. As a whole, I love the pre-ghostwritten books, but more as a collection and not individual. Usually the stories are just too short and shallow to really get into them.