UngeheuerLich
Legend
For the most part, 4E has pretty solid balance between its classes with some spikes and some dips. In general though there isn't a single class that is nonviable and I've ceased micromanging any class in 4E. I let people play what they want and the system 90% of the time takes good care of them - without my micromanagement of powers/feats except in rare cases. That's a true triumph as a system, at least until Psionics was released in PHB3. Right now any Psionic class that gets a single low level at-will power that scales poorly (EG Lightning Rush and Mind Thrust) becomes far more powerful or even game breaking by epic. This is because the power point system is deeply, chronically flawed and doesn't work. For the first and only time in 4E, I've had to micromanage three classes and think about rewriting for myself an entire system (Power Points) to bring spamming of low level "at-will" augment 2s down by epic tier.
It's not my idea of fun and not why I enjoy 4E.
I will keep ragging on Psionics all the time until I get my point across. Psionics are broken because they completely dismantled part of the encounter/daily system for them. At low levels they perform okay, but once they get the PP to turn an encounter power into an at-will some become broken or far more effective than if they take a higher level power (Battleminds with Lightning Rush for example, is a night and day difference as a defender).
Just because 2 powers of the psion are badly designed (maybe a fixed bonus will repair it), an maybe because higher level powers are a bit on the weak side for the amount of PP they cost, this doesn´t mean that they are inherenly broken by design.
You remember the warlord using its lead the attack power until level 30? A simple errata to those two powers would be helpful.
Ligning rush on a battlemind would have better been a class feature at this level. So noone would whine about using it until level 30 and they could have saved space for later powers that won´t replace it. (Battleminds have only 2 dailies and lightnng rush or something like that)
IMHO you are confusing bad game design with bad power design in most cases. I believe the fighters stances are a cool way to distinct this class from others.
You also should have in mind, that a long time 4e player has no problems with at wills that can be used as MBA. A new player may have an easier time wrapping their brain around stances and auras which are very intuitive.
Also power strike is a simple way to have some extra oomph at a critical point. Maybe an extra effect like dazed would have been cool, but at 1st level it may be a bit much.