I disagree with Real Madrid, Athletico, Dortmund and maybe even PSG are better than Real at the moment. (not if you're talking about the players but I'm talking about their current form. Porto is always decent but I think Shaktar deserves to be in the top 10 list at the moment before Porto. Real Madrid is really weak at the moment in La liga. In the CL they're lucky that Manchester City was really weak and Ajax too. They're not better than Dortmund. Manchester United is gonna beat Madrid in the CL, mark my words.
Rest of the list I agree. Bayern and Juventus are really good and Barcelona is good as always. Man Utd deserves to be in the 4th place, not by playing the best football but because of the good results
It's a mixture of the strength and how they're doing currently in whichever League they're in.