This is expected and really only gives players the illusion of choice as they're always going to pick the best one

Instead of developing, as in taking what players seem to generally like about a certain class or spec and evolving those traits for the better, Blizzard for some reason feels the need to randomly take certain specs and completely reinvent the wheel in a way almost nobody asked for (if overwhelming beta feedback is to be taken at face value)

and I mean broken going from both sides of the spectrum, from classes destroying everyone, to classes that can't even kill another player

This gave some players a significant advantage over others because they used exploits and at the start of an expansion, that is the time when it's most impactful.-PvP- Completely broken for some