The point that is not really being considered here is that the Queen Vic is not an ocean liner. She is a cruise ship, not surprisingly looking like the Holland America ships as she shares a lot of common design characteristics.
The QE2 and QM2 are both liners, although I would still question some of the criteria used for the QM2 but certainly the last true greyhound is the QE2. No other ship since she was built has been able to match her ability to cut through the waves and handle the weather but the new Queen Vic was never even designed to do so.
But then we have to look a little bit beyond such sea keeping abilities and think about fuel costs, environmental impact, balconies (like it or not that's what customers want these days) etc..etc.. The reason the QE2 does not use all nine engines nowadays is quite simply that it costs a fortune to do so and speed for speed even though she doesn't do it quite so gracefully the Queen Vic will get there using considerably less fuel.
Much as we love the QE2, and I have worked on her so I have more of a soft spot than most, we have to move on.
I find myself constantly referring back nowadays to the time when the QE2 was introduced to the world. Everyone to a man thought she looked far too futuristic and ugly and certainly not like a proper liner!!