2009 Nissan Altima 2.5 S 4dr Sedan (2.5L 4cyl CVT)
Just purchased this car for my wife, we researched and test drove the Camry, Fusion, and Mazda6 as well but selected the Altima. It has what we felt was the best finishing details/trim and was sportier than the Camry and Fussion. The Mazda6 was a close 2nd place but our local dealer didn't have much of a selection. We have owned Mazda 626 and a Camry in the past and really like both of them, but the Altima just fit our needs better this time. Probably a little more in price when equipped comparably, but worth the extra $$. We love it so far.
The keyless push button start is pretty cool, but overall the stongest in class 175hp four cylinder is what set it apart from the others.
If Nissan could be more flexible on options instead of packaging them the way they do it would be much better. You have to buy alot of extra options to get the alloy wheels.