A rebuild completes when you return your team to the PO regularly. Neither has done that. Detroit much closer this season than Montreal, however, they are not exactly led by their young guys (I wouldn't call a 27 year old Larkin young).
I do wonder if Detroit has enough high end talent to contend. Seems short 1 higher end scoring forward and I don't think Kasper/Danielsson is going to be that guy.
Montreal, kind of the same boat in terms of offensive forwards. Suzuki/Caulfield are a good base. KK is gone but clearly over drafted, and Slaf is a work in progress. Who is that #3 guy to add to the first 2?
Both have plenty of young D on the way up.
Goalies for the future, still an unknown as goalies take time to develop for both teams.
Dach, but his shortened season prevented from seeing what he could do, but he's still an asterisks, or question mark.
I'd say tie, or Detroit. Detroit started before the habs in the rebuild, but they're only slightly ahead.
The Habs, I guess main insiders in Apron Basu and Marc-Antoine Godin are both stating/insinuating the Habs will be aggressive again in the trade market, looking for another young player to add to the team that's ahead in their development and take a dip into the free agent market. Next offseason they seem to think will be when the Habs really start pushing
They both lack that high end talent in the organization anywhere. Habs have a 5% chance, or whatever it is currently to get Celebrini and a better chance to get a prospect like Demidov.
Detroit is seeing Cossa finally putting things together and I think have a consistently goalie will definitely help that team overall. They have the assets to make another trade to add a good, solid piece to their team.
I think both Detroit and Montreal, or at least Detroit at this point are going for a pretty good player and some really good team depth approach.
For the Habs, Suzuki has set career highs in points for 3 consecutive seasons. Getting another 12 points to be a 90 point player next season isn't unrealistic. If the Habs pp can be a bit better, Cole getting his shooting percentage back up and that's an achievable target. Potentially adding another young player via trade and the return of Monahan could put them into a similar spot to where Detroit is this year.
In short, Detroit is likely ahead.