Liverpool looks best at the moment but I feel they will be hit hardest with congested schedule and than African Cup of Nations. Both Chelsea and City have longer benches (arguably) and will not loose top players to African Cup. If Liverpool survives this period without falling behind they will be first favorites for title.
Chelsea had big problems with injuries. They were playing long time without Lukaku, their only real striker, and Kovačić who looked really good in the middle. Added to that they had a lot of injuries in defense, first Azpi, now Chilwell and James.
mostly agree, although I do think that City has best chances to get title this year
Liverpool looks good, and African cup will be a test for them to stay in the top, but I think that they do not have mental strength for a winning strikes, they had it one year, and made difference, but they could hardly repeat that one, Klopp is a great "cup competition" couch, but I will be surprised to see him getting another title in PL