Gonna have to disagree with you on that one.
De7 is an amazing ship - one of the better DY ships in my estimation. The airstrikes have long range for her tier, just low area - which is fine in my book as it means you just have to aim them better. Her gunnery is the scariest part about her. Even if you take IFHE she still lights tons of fires.
Hizen isn't as bad as people make her out to be. She still has a very big throw-weight, the reload just punishes mistakes and she lacks anything that makes her feel "special".
Marlborough I don't care for myself much either, but my fear is that a buffed Marlborough would quickly become the HE spamming monster that KGV is at T7 or Conq is at T10. It's a fine line between making a ship more attractive and turning it into a headache.
Odin I generally like as it was the first time we got a German BB where the secondaries and the detection nearly lined up - I don't think we were ready for that until the Schlieffen line showed up.
ZF6 remains one of the best DY ships pound-for-pound in the game.
Atlantico is awesome, full stop.
PR is a solid T10 Large Cruiser with a big meaty AP broadside and a hidden citadel.
Anchorage is underrated because the gameplay is a little too straightforward for most people's tastes I think. Smoke and heavy cruiser doesn't seem to mesh well in most people's minds.
Repulse is just the best