For Aston Villa have been visibly incredible with their performances in the English Premier League for the last two seasons but just like you, I don't think they can win the league this season and my opinion is based on the fact that they're not just playing in domestic competitions but also in the UEFA Champions League competition. For Chelsea, I thought they possess the quality squad to contend for the English Premier League title this season. The depth in the squad is very solid which I think gives them an added advantage but they'll need to be more consistent than they've been this season to achieve that
Overall we have not been able to predict one of the teams that will win the title it's just that we can see candidates based on their performance, for example, for now Arsenal and Manchester City are teams that have never lost so they deserve to be candidates as competitors. Liverpool certainly should not be ignored because they also have the ability even though they lost once, they could still secure the top of the standings, yeah at least 3 of these teams look more prominent at this time.