Beowolf Is a definate Keeper.....All the greatness of a knight plus the Status Killing Power of a Mastered Oracle.

I think if you had kept them all then Decieded which ones you liked you would have found you liked a lot of them.

Cloud has some very good potential but you get him at Lvl 1 in chapter 4.

Ries is possibly the only character that can have as Much Hp as a Knight without even Equping any Armour (Because of her inborn High HP)

Thats not to mention all the other wounderful Classes and characters your missing out on.

Malak and Rafa are extreamly unique characters..... When you find a use for them then you have accomplashed somthing indeed.