Sazh's voice was actually quite nice, I was expecting some Comic type voice.
Lightning's Voice was good, not GREAT, but good. It made her sound like a woman, sure she is tomboyish and a remake of Cloud, but you don't want her with a deep voice and muscles do you? Thats why they made her voice womanish, her hair a odd shade of Pink, and a slender body.
Vanille's voice reminded me abit like Rikku from FFX and FFX-2.
Snow's voice was also good, not great.
That little kids voice is the most annoying voice ive ever heard!
And Angel, I don't think hed start the story, he seems younger than Vaan, maybe 12 13 years old, I don't know, I can't judge age, so maybe he is a small 17 year old.
Overall, Id give the VA a rating of either 7/10 or 8/10.
Good work SE!