Necros will most likely get fixed.
Pet classes tend to start of gimped because the devs of these games try not to overpower them having a ton of awesome summons (or 1 really wicked one).
I wouldn't worry so much on class balance as is it a delicate 'dance' so to speak. These games get balance tweaks for their entire lifetime.
I love positional combat though. Some people say it just makes it tedious, but in reality it actually makes you think, requires a bit more skill, keeps you involved in the battle etc.
I'd much rather have to pick my attacks and such than taking a nap while playing WoW (most boring combat EVAR).
