Hmm...this is much tougher for me, compared to others.
On one hand, the S65 has incredible power (perhaps too much?) and it's arguably the sportier of the two, both in looks and driving dynamics, using logical assumptions. But it's stumbling point is that styling! It just doesn't suit the S-Class at all. Don't get me wrong, I think it's a fabulous design, but it doesn't look 'right' on an S-Class. Like I have said before, the S-Class is not one to be agressive and edgy in its styling, rather serene, elegant and well, conservative.
On the other, the Flying Spur is theoretically a step above. It's more luxurious, it's more 'prestige', it's got the S65 AMG covered in every aspect of what a 'luxury car' is supposed to be. It's interior is top-notch and it's ride is supposed to be excellent. But, like the S-Class, the styling is where it stumbles. Even though a luxury car is supposed to be conservative, it certainly doesn't mean it has to be sleep-inducing. It's just so...boring.
So one has got the sporty section covered, with the other having the luxury all wrapped up. So which one to go for? Are we looking for a sporty car? Are we looking for a luxurious car?
I really can't decide a winner - both have two different mindsets, and the creator fails to address what we're basing our decisons on.