I think the winner of this cup could be Tottenham, the winner of the Europa League. Premier League is one of the strongest teams in the league. However, if we look at the game, they are better than Manchester United. Manchester United has almost the same rate, but I don't think they are very good in the qualifiers. They are lucky to continue in the Europa League. They could have been eliminated. Therefore, it wouldn't surprise anyone if they get a surprise defeat in some of the matches they will play in the Liga stage. Still, they are one of the favorites.
I think it is very difficult to make a prediction now... English teams play with a very intense and tiring tempo in the Premier League. That's why they can't or don't want to concentrate on these tournaments. I think it is natural that the English teams are the favorites but no English team will win this tournament. I think teams like Porto or Frankfurt, who have the characteristics of a tournament team, are the bigger favorites in this tournament. Of course, I would like to add that I am not ambitious in my prediction because it is too early to make a good prediction...
But remember what happened two season ago in the Europa League? Arsenal got eliminated, Manchester United got eliminated. It's not that easy. Of course they play intense football and everybody knows it, but that doesn't guarantee them any form of success. Actually, they have both lost against underdogs and it happened repeatedly in recent years. Surely Tottenham is a candidate with great chances, but so are several other teams. There is Porto, Roma, Frankfurt, and also Ajax Amsterdam although they are not as strong as they used to be. It's an open race in my opinion. But as always the English teams seem to be the favorites.