My personal choice would be the Firestone Winterforce. It all depends on your overall conditions, but the Michelins are not as good as the Firestones in slush or snow. They wear faster because of their softer rubber, don't handle as well, and with a 100 mile commute every day, you have to take that into consideration.
I put a set of Xi2's on the wifes car at the beginning of this winter, and after a couple of storms, she complained that I wasted our money because they were not what she expected. I then drove her car for a couple of weeks through a couple of snowfalls and pretty much confirmed what she said, and what I've known for 3+ decades. They are pretty good on packed snow and ice/snow, but marginal in slush and snow.
We replaced them with a set of Winterforce because I had a set on a previous car, and she's been in heaven. The past couple months we've had nearly 30" of snow and she hasn't complained once.
Where we live, a good open-tread studdable snow tire works better than the studless designs overall. I've had them all, both studdable and studless, Michelin, Bridgestone, Nokian, General, Cooper, Firestone, BFG. Like I said, this has worked for me for over 30 years and I don't see anything in the studless variety which will change my mind soon.