K.H.
I have had Explorers, a Zephyr (old version of the MKZ), and a Focus. I loved all of them and most of all, my new Edge. If your husband is hauling tools, the new liftgate feature (one touch lift or you can use the key fob to auto open the liftgate) is awesome! Aside from the sync (bluetooth with my phone) and navigation system - the liftgate is my favorite feature. It is also roomy and comfortable.
As for your car - I like the Fusion a lot, it is in the middle size wise. If you want a little more room - the Taurus is the roomiest - with an incredible trunk. Anyway, good luck with whatever you decide.