Well, the three you put in range from decent lenght to long.
Out of those three, if you want the shortest one, RoF is fun and entertaining (so long as you don't mind japanese style humor). It 5takes a bit to understand the combat, but you eventually pick it up.
The best one out of those IMO, would be Tales of Graces. While the story is predictable, it's not bad. Good combat system with several difficulty levels to fit your style. Likeable characters, and nice art. But it can be pretty long.