I ordered the handling package because I prefer to have as direct a handling experience as I can get. I also tend to prefer firmer suspension setup. I would love to know more about the exact differences between the stock Titanium Sport suspension and the handling package version if anyone has that info.
Regarding the tires - it does seem wise to swap out the wheels for a winter setup if you need to deal with snow. Here in Arizona there's not much to worry about in that regard (at least in/around Phoenix). It's warm and dry or hot and dry - with an occasional monsoon. Performance tires have been working fine here all year round.
One note about the color - don't write off paying a few hundred extra for the metallic tri-coat options. I saw the white tri-coat on a Fusion and it was a dramatic improvement in how the car looked. Your car of course, but for me it was a no-brainer. Good luck!