I reiterated my stance that the Battlemaster is what the Fighter should be. The Maneuvers system and superiority dice should be the baseline for the Fighter class (and really, many of the other melee classes) the same way that Spellcasting and spell slots ares the baseline for all the magic classes. And to throw that system by the wayside is just stupid.
If you add these four archetypes to the four Fighter archetypes we already have (Champion, Battlemaster, Eldritch Knight, Banneret) and you ask someone "What's the underlying base mechanical assumption that gives all Fighter their iconic identity regardless of subclass?" what is our answer currently?
Action Surge and Second Wind.
That's it.
All Barbarians have Rage; all Bards have Spellcasting and Bardic Inspiration; all Clerics have Spellcasting and Channel Divinity; all Druids have Spellcasting and Wildshape; all Monks have Ki; all Paladins have Spellcasting, Smite, and Channel Divinity; all Rangers have a lot of junk; all Rogues have Sneak Attack; all Sorcerers have Spellcasting and Metamagic; all Warlocks have Invocations, Patrons and Pacts; all Wizards have Spellcasting, Spellbooks, and non-prepared Ritual casting).
For Fighters though, they get a second action in a round and some self-healing. That's all. Every other meaningful mechanical feature for the Fighter currently is completely different for each and every single Martial Archetype. There is nothing the Fighter as a class has which I think is a really cool thing it gets to hang its hat on. Every single cool thing comes out of each individual subclass, and these four new ones are no different. Which I think sucks. Because it give the Fighter as a class no real identity.
Now I'm sure some people are happy with that, because they thinks Fighters should have no individual identity. Personally though, I think that just makes the Fighter class almost superfluous.