I don’t think Aston Villa or Chelsea can win the Premier League this season though Chelsea might be looking like they are resurrected and scoring goals, Enzo Maresca still have so much to prove before I can believe that Chelsea is back to their glory days.
Aston Villa are a good team but certainly not good enough to compete against Liverpool, Manchester City and Arsenal. This season, all three clubs look like title contenders. The season is still young, we will find out as the season progress which teams will be able to stand the tough fixtures and fatigue when it begins to set in.
The both clubs Aston Villa would be fighting for fourth and fifth position at the end of the season if they can continue fighting the same way they have started. I will want to place Aston Villa ahead still because they have a manager who's experienced in the Premier League Competition and at the same time they have a good defense. Fatigue and too much games would be the challenges they'll be facing ahead. As per Chelsea, they are doing well right now but they don't have a solid defense system even though the coach is doing well. Arsenal and Manchester City are frontiers this season again. Let that sink in!
For now, Chelsea and Aston Villa's strength will not be able to become champions, there are still leading candidates Man City, Arsenal and Liverpool whose strengths are considered equal so far.
Chelsea still has to improve their defense which is currently still fragile, as well as their attack line, I think it is still not sharp enough.
On the other hand, Aston Villa under Unai Emery this season will make it difficult for their opponents, but the trophy will still be difficult to pursue.
I will not expect too much from Chelsea and Aston Villa. However, if they want to pursue 4th position at the end of the standings, they can achieve it.