My take on finishing 1st vs 2nd:
Barcelona > City (obviously)
Atletico > Bayern (In CL play, due to Atleti's defensive solidity)
Dortmund = Real (Real are more well rounded, but Dortmund can be extremely dangerous)
Arsenal = PSG (Really don't know who's better)
Monaco > Leverkusen (Monaco are harder to break down)
Leicester < Porto (with their experience, Porto are way harder opponents than Leicester, although they've struggled this season)
no one vs Benfica (increases our odds of getting a smaller team)
So overall, I think, it's better that we got first place, Porto is the only worse matchup in this situation.