I always create multiple characters (whyyyy can't we skip the opening CS's?!) to test out the full emote and battle voices. It's more than tedious, but a voice is one of those things you'll hear quite often. When I used my first fantasia, it was to change only the voice. :3

Gotta say, I'm really not a fan of those (for lack of a better term) super-anime sounding voices - either super breathy or high pitched, or a combination of both. I'm not completely sold on my Lala's voice, but for me it was the best of the worst. But OMG, I want to stab sharp things in my ears when I'm on my bard.