2009 Nissan Maxima 3.5 SV 4dr Sedan (3.5L 6cyl CVT)
I seriously considered (and test-drove) the Toyota Avalon, the Lexus ES330/350 and IS250, and the Maxima was just a better overall vehicle. It's comfortable, stylish, feature-rich, and extremely fun to drive. The CVT transmission is very responsive, the engine has ample power, handles like a sports car, yet has room for 4 people (it has seat belts for 5, but the 5th one had better be a midget). I fell in love with the iPod integration immediately, and the center console computer (I didn't buy the nav) has bucketloads of information if you desire info. I can't say enough about how I enjoy the SmartKey (breaking the habit of taking out a key was easier than I thought). Terrific vehicle!
CVT, firmer seats than Lexus, center console computer, iPod integration, SmartKey, sports suspension, memory seat / mirror / steering wheel, Bluetooth hands-free phone, rear audio and heating controls (with switch to turn them off in front), backup camera with computer-drawn car footprint on screen
Better gas mileage (though I'd lose some of the power), lower price (though I got a good deal)