Won't bother talking about the '97 Taurus...those who have owned one KNOW what sort of car it is, and why I got rid of it. Originally didn't even consider the Fusion - honestly, I didn't think it was in my price range. Once I realized it was, I did the research and discovered it was a very reliable car. We paid $12K for an '08 Fusion SE, 25K miles, balance of the warranty, etc. VERY pleased so far. Not the fastest car out there, but for an I-4 it is actually quite powerful. Interior/exterior styling and comfort are VERY nice and comfortable; plenty of trunk room for the size, etc. I *HIGHLY* recommend it - assuming it stays reliable, we'll drive it until the wheels fall off. :)
Interior comfort, reliability rating, features for the price ($12K got us backup sensors, auto, power everything, 6-disc MP3 CD changer, cruise, etc.).
Slightly more powerful/less buzzy I-4 (though that may be due to its being an OHV I-4, I think).