Habs are kind of in the middle of their rebuild, acquired highly talented F prospects in the last draft (which was an area of need, even after Slafkovsky), but still very much a 'work in progress' as far as timeline goes. As a Habs fan, I'm optimistic for the first time in years about the direction we're taking, cause we finally seem to have a real one. Still think we're going to have a rough year, we still have lackluster veterans that needs to f*** off, but at least, we do have good young forwards, our D depth is something I ain't seen in a while, and our G pipeline is the most impressive I've seen in nearly 20 years. We're just not there yet.
That said, Detroit, like many said already, are attempting to turn the corner, I think their rebuild is over, you don't sign that many veteran UFAs in a rebuild, especially when they kinda get in the way of your prospects. I get they want to surround them, but still. Yzerman wants to push the team forward, and honestly, the Wings have a lot of interesting pieces to come, so some nurturing to do yet. Team just need to click.
So, 'better' is too subjective for me at this point, I'll simply say Detroit is further ahead.