Why do people keep asking for skill trees? SCH and SMN are exactly this, minus the few 'choice' decisions. It's horrible and you should feel bad for wanting it. You don't even get the illusion of choice - everyone will tell you that you're bad and your build is wrong. True balance needs to be able to rely on what players will and will not have, you can't balance around 'what if'. XIV has done amazing at balance thus far (Compared to other games).