I have had both a Malibu and Fusion as company cars. The Fusion was ten times the car the Malibu was. My Malibu had steering issues (as did several of my co workers cars) and a electric gremlin that they could not find. If you did not start the car for 2 days it was dead, better keep jumper cables handy.
This time I did not go the company car route and bought a car instead. I bought a Camry XLE V-6 (my first Toyota) and it has been great. It is quite, rides well and the 260+ HP V-6 is very fast. I have gotten 28.12 MPG over the 38,000 plus miles I have put on it so far.
Ford wil be fine, they build good cars. I have never been a fan of GM, but I wish them the best.
American car companies still have a ways to go to convince me. I've had waaay too many issues in the past. A buick that blew up at 80,000 miles, a ford at 100,000 miles and a whole litany of electrical issues in just about every American car I've owned.