What people need to understand, is that Europe and Domestic football are two complete separate type of football. Man City, have been a complete shambles in the Champions League, that one Pellegrini semis run aside. The year they won the first PL title, the following Champions League campaign they finished dead last in their group and ever since then, they've never been able to replicate their league form in Europe and even last year, they got knocked out by Monaco. Although, I believe this year their fortunes may change as they have a proven European manager in Pep. Spurs, who have consistently been strong recently, couldn't hack it in Europe last year and even got knocked out by Gent. Again, this season much improved under a more experienced Poch. Napoli, who are leading the Serie A, disappointed this year. Simply put, domestic success does not equal European football strength.
On the flip side, Liverpool are the antithesis of what I've mentioned. A club, where European success, is part of the DNA, regardless of their domestic form. Klopp, is a very able European manager as well. Yes, Liverpool have been inconsistent and most part, average in the League, but in the Champions League, they will turn it up. The competition is built for them. I do think they will be the best English performers of the Champions League this season, it goes without saying, through winning games 7-0, 7-0, 5-0.