Well the fact that the Maxima is squeezed on both sides by the Altima and the G37 are what make it pointless. Not to mention the whole "4 doorsports car" positioning when its a car offered with a CVT only.
Well, it's pointless to you. Clearly, it's not pointless to Nissan - they have rather a lot invested in the Maxima nameplate. The fact that their other sedan models both above and below the Maxima are strong sellers is rather a nice problem for them to have. I suspect they are willing to endure the scoffing of nameless internet forum feeders as a consequence.
As a FWD sporty near-luxury sedan, I'd take it straight up over the TSX. While not a huge fan of any automatic, I'd take the Maxima's CVT with quick shifting 6 "speed" manual mode over the TSX's retro 5 speed slushbox. And I prefer the styling of the Maxima to the TSX. So it's not pointless to me.
Jaeger