You're browsing the GameFAQs Message Boards as a guest. Sign Up for free (or Log In if you already have an account) to be able to post messages, change how messages are displayed, and view media in posts.
I think the character who deals the killing blow gets a little more experience than the rest, but it's nothing you need to worry about or even really pay attention to. I never had to grind but keep in mind I only played about 3/4 of the game. I wouldn't call it an SRPG anyway.