Personally, I am in favor of more personal survivability. And I agree, the AOE rotation is terrible. But the problem is that we have little choice in our rotational abilities. And those rotational abilities are balanced around building 3 HP and then dumping them. I'd like to see something not tied to HP, or if it is tied to HP, give us an extra rotational ability that works in some utility in some way. Many classes can do interesting things with their rotational spells, like some spells having secondary effects etc.
I don't know. I'm just lusting for something that defines Ret more than Holy or Prot. I'd say the biggest thing that defines the Paladin class is our bubbles. Which is why to some extent, I'd like to see Sacred Shield added back baseline at least for Ret so as to address our survivability issues.