This, although I voted same/bad thing. I've always had a problem with not being able to take down any humanoid creature with one shot, regardless of level. When slitting a 10th level character's throat just makes him mad, there's something wrong. Not that I've ever been able to come up with a fix that would keep them from dropping like 1st levels in normal combat...Same as it ever was, and that's a neutral thing.
D&D hit points are abstract and always have been, they are impossible to define and ultimately lead to thinking to hard about fantasy.