Some of the topics here are less than positive, but this game certainly had its good points as well.

The thing I loved most about it is that the characters actually seem to like each other and become friends.
In XII they were mostly three pairs that just decided to work together, while in VIII everyone seemed more interested in what Squall and Rinoa felt than their own problems. The people of X were a little closer, but most were there to protect Yuna.

I like how in XIII they have lots of conflicts with each other, resolve these and begin to trust and like each other.

Hope really brought out the best in Lightning, while the interaction between Sasz and Vanille was interesting as well. Fang and Lightning, both battle hardened, relied on each other and Lightning came to see Snow's dedication and appreciate it, etc etc