Better than latter
About the story?...what story?.you can make it yourself( eg:help or not helping others), feel free to make the one that suit you. I thinks this is the reason why this game get a "saga" as a title.
You have 8 main character to choose from, and everybody get it's own pro and cons. Not to mention other support (generic or nameless character that you can recruit and kick out of the party). So this games have high replaybility value.