I like all jobs right where they are: balanced. You have 8 people in a party each one bringing their own strengths with which to compliment each other's weaknesses. I'll listen to anyone who can tell me how a job with no definable weaknesses is balanced. For balance to happen you have to have strengths in one scale, weaknesses in the other. That's what balance is. Right now WAR's scales are on the floor after having tipped over 7 months ago and a vocal minority of them are like "uhh this is where all jobs should be sorry you're not l33t like us, just go to SE's table and beg for scraps until they give you all this stuff we have". You can't give a job strengths and then in the slots where its weaknesses or shortcomings would go, just put more strengths. That's categorically unbalanced, by definition.
"Well-designed" isn't how I'd put it either. It doesn't fit in with the design of the rest of the job system. Its an island unto itself that needs the least input from others. WAR as a job values other jobs less because it has no weaknesses that need to be covered by the rest of its party. It doesn't fit into a team mentality really. That's poor, unbalanced design.
But no, lets remove all weaknesses from all jobs to make them more like WAR and make the need for any one job or role completely obsolete. That's logical? I'm open to reasonable argument to the contrary but really most responses just come down to a simple "NO U."
Imagine NIN/DRG/MNK. Give all of them the utility of NIN and the DPS of MNK. Just all 10/10 across the board, no deviations, no peaks/troughs. Doesn't sound balanced to me. Give SCH/AST/WHM each their own Bene, fairy, and deck of cards. Balanced?
Balance
noun
#2. a condition in which different elements are equal or in the correct proportions.
I don't want Fell Cleave/Equilibrium/Storm's Eye for my job. I'm happy with my job where it is. Its balanced. Its not perfect and those imperfections are balanced by synergy given to me by the rest of my group, and I like that, I like being part of a whole, a team. I like balance.