Of course, all the teams who qualify for the next round are the strong teams. If they are not strong enough, they must be eliminated already.
However, I think there are some favorite teams to got to the final round because we see their performance looks more consistent than other teams. Man City, Bayern Munich, and Real Madrid are 3 teams to be in the final based on the prediction of many people. But if we look at the result of the matches in the current round, only Bayern Munich and Man City deserve to be the favorite teams. Real Madrid looked a bit difficult to win against Leipzig, not sure if they can deal with the next opponent. It seems, the most convincing team is Man City. Will Man City be the champion again this season?
Source: uefa.com
Indeed Manchester City had impressive performance since group phase until 16 round I don't sure they are favorite team, I want to see Manchester City have to face Bayern Munich or PSG on quarter final. However, I think there are some favorite teams to got to the final round because we see their performance looks more consistent than other teams. Man City, Bayern Munich, and Real Madrid are 3 teams to be in the final based on the prediction of many people. But if we look at the result of the matches in the current round, only Bayern Munich and Man City deserve to be the favorite teams. Real Madrid looked a bit difficult to win against Leipzig, not sure if they can deal with the next opponent. It seems, the most convincing team is Man City. Will Man City be the champion again this season?
Source: uefa.com
Regarding with quarter final teams left seems Dortmund is the only one weakness teams and most expected by all team face in quarter final, most lucky if quarter final drawing face with Dortmund than facing other difficult teams such as Madrid, Barcelona or Manchester City.