In RPGs featuring a unique party of characters with weapons and ability that are totally up for me to choose, I'll go out of my way to build each character as the "class" I feel they remind me of. A perfect example of the is FF12.... sure, everybody but Balthier and Fran stars out as a sword + shield kind of Fighter/Warrior job, and their stats can change depending on the type of gear you level them through (I... I think so, at least). But I tried my hardest to make Vaan good with knives, tried to make Fran the sniper and Basche was my tank, and Ashe was going to be the "mage" of the group.
I kinda lost faith in Balthier and Penelo because.... well, guns were about as useful as Khimari from FF10, and I didn't see Penelo as contributing to the "class" variety... I got kinda lazy and forgot to level them both, so they're still in the 50s while my mains: Vaan, Balthier and Ashe, are up in the 80s...
I think it's because I invest too much attention in liking the characters compared to how much strategy I put in my party builds ^__^;