Let's see...
Forward core: Leafs.
Even if you think Eichel is better than Matthews (it's very close), Marner, Nylander, Kadri, Brown, Marleau, Kapanen and Johnsson >>> Reinhart, ROR, Mittelstadt, A. Nylander, Okposo, Pominville and Girgensons.
D core: Leafs right this second, likely Buffalo future.
Rielly is the best on either team until Dahlin pops, and he is better than Risto, his counterpart in Buff.
Dermott, Gardiner, Zaitsev, Hainsey and Carrick is better than Guhle, Falk, Bogosian, Beaulieu and Scandella.
Neither is exactly a sterling set up, and Dahlin can and likely will tilt the scales...but again what if the Leafs bring in another capable RHD?
Goalkeeping: Leafs
Andersen is much better than Lehner and Sparks is the best G prospect on either team.
Prospects: Buffalo
They're a worse team so of course they have better players in the minors.
Guhle, Dahlin, Mittelstadt and Nylander >Liljegren, Bracco, Johnsson and 2018 25th overall.
Coaching: Leafs AINEC
Management: Leafs
Resources: Leafs
Market Appeal: Leafs
Current Cap Structure: Leafs AINEC. Buffalo has a few bad contracts, Bogosian and Okposo immediately spring to mind, the Leafs have Zaitsev which isn't really crippling and he could easily bounce back...the Leafs are actually in a position to take a bad contract back to farm additional assets. Were I Kyle Dubas I would be on the phone with Minny offering a futures package to take Ennis and one of Coyle or Brodin so they can more easily sign Dumba and Zucker.
Buffalo has some nice young pieces, very nice young pieces actually, but let's see them make some noise before we say they're better than a similarly aged 105 point team.