I think it's difficult to measure Barcelona's strength this season because seeing the appearance of their squad hasn't really seen full consistency, but I think it takes time to see Barcelona's strength in the next few matches in the Spanish league, I hope Barcelona also doesn't fail in the group phase and can make it to the UCL final, though hopefully he doesn't end up in group hell.

So far what I see is that Manchester City's most prominent strength is because it seems they are much stronger than last season. It can be seen from the way they play in the EPL this season, it really looks good, especially with the squad that is currently good enough to win back the UCL champion this season, but besides that there is madrid who will also be a threat because madrid has several good players even though they have not yet found the best striker who can replace benzema.