Okay, here goes...
Indeed the 300C has great 2nd row legroom, at 40.2 inches. Still very amazed at how 39.8 inches of 2nd row legroom of the cx-9 are just called: decent. Now we can tell that u just didnt wanted something with decent 2nd row legroom and a bigger trunk than of the chrysler, cause many cars like the 7series , buick lucerne, cadillac DTS, lexus LS 460 L, mercedes S550, completely fullfill that criteria, in both 2nd row legroom and more cargo space that the 300C.
Ever try to fit a power washer, 55gal trash can, 4' Christmas wreath or a few bar stools in the trunk of any of these cars? They didn't fit in my Jag and they don't fit in my Infiniti. I own four restaurants and constantly want to carry something from one to another. But I also like to fit four golfers with clubs in something with decent leg room. (PS, I wasn't crticizing the legroom of the CX-9 in comparison to the 300C. I was ruling out vehicles such as the Infiniti EX35 due to their lack of legroom.)
So in the end, as said later by you, u were looking for an SUV-like vehicle.
Now of course talking about decent 2nd row legroom and more cargo space than that chrysler, wonder how u dismissed so many vehicles, like a landrover LR3 (Unappealing.),range rover sport (Test drove: too stiff a ride), X5 (Test drove: did not like the interior and I felt like I was riding on the seat instead of in it.), acura MDX(Test drove: loved the vehicle and would have purchased one but I just couldn't stand the wide black plastic faux wood that wrapped around the dash, ugh!), GL (Best friend has one and I didn't want to have the same vehicle.) and M class (Don't especially like the exterior lines), lexus LX570 (Too large.), buick enclave (Test drove: the quietest ride of anything I testdrove, the second row seats were pitiful in comparison to the second row seats in the similarly sized Escalade and no second row center is available yet), lexus GS470 (Test drove: sweet, a bit tall and a bit too top heavy on corners; I liked the ride of the RX better, but it's tired and ready for new styling), audi Q7 (Test drove: was not in love with the front end, but might have purchased one if there were no CX-9), ford expedition (Not a big Ford fan), toyota sequoia (Would buy a Lexus instead if I'd wanted that styling), escalade (Been there, owned that... too big.), landcruiser (See LX570), tahoe (Too big.), yukon (Too big.), and so on and on. Boy, our 2008 motor trends suv of the year definitely can take away buyers from a lot of brands and models.
Still, what I dont understand is why buy a 7 passenger car when no more than 4 people will ride on it.....and most all, why buy a not luxury SUV when u can buy any car u like? (If Escalades were 10% smaller and not as ugly as the SRX, that would probably be my first choice. I considered waiting for the redesigned '09 FX45 but I wanted something now.) Seems u dont like luxury after all. (Huh? Did you come to that conclusion all by yourself or did you get help from someone else who also had no clue as to why I didn't buy the vehicles you listed?)
PS. The Chrysler Aspen's leather was like hard plastic. The Outlook and Acadia drove just like the Enclave but were not as quiet, not as elegant and had the same second row seating. The FX-45 was nice, but I prefer vehicles in their first few years of design, not their last year. The Santa Fe drove well but was very limited on options. And finally, the Grand Cherokee SRT was a fun rocket but the interior was not plush and the wind noise was even louder than the exhaust.