Of course Liverpool and Bayer Leverkusen are the main candidates for the title this season. But Milan can probably do well too, they played well in the qualifiers. I also like Sporting Lisbon, who also did well. I think this Europa League season could easily be a surprise. It could happen that for example Bayer and Liverpool meet before the final.
There are many strong teams in the Europa League this season so there will definitely be interesting surprises before the final if they can all meet each other early. But for now I prefer Liverpool to become champions in the European League this season because the team has also proven itself in the Premier League so far where Liverpool is still at the top of the standings. However, if Leverkusen can succeed in the Europa League it won't be so bad because in the Bundesliga Leverkusen is also very good this season.
Liverpool, Leverkusen and Milan are considered to be the favorites this season. Roma, Atalanta and Brighton are not considered favourites. Because the performance of these teams is quite erratic this season.
Leverkusen are unbeaten in the Europa League and Bundesliga so far. Despite several key players in their squad injured, Leverkusen's overall performance is still strong. So I consider Leverkusen as the favorite for the Europa League title. Liverpool team on the other hand is very strong. But I think Liverpool's main goal is to do well in the Premier League. Big teams like Liverpool have little interest in winning the Europa League title.