I found a computer image of it off a Google image search, and it look top heavy. But then again, I thought the same thing about the Queen Mary 2. I'm sure the designers know what they're doing. And when I finish college, and get a degree in Naval Architecture, I should know what they're doing.
What I meant about the classes being nearly identical is, look at how similar ships in the Destiny, Triumph, Conquest, and Slendor classes look, and then look at how different Spirit class ships look from them.