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 is the favorite for most persons in this league this season and they have actually performed so well that it has got many see them as deserving of been seen as the champions of the Europa league trophy this season, Liverpool has got one of the most strong drive for the Europa this season but then they will be challenged by Leverkusen too so they will have to it in the work to get to actually win the Europa.
Leverkusen is as good as Liverpool is in their various domestic leagues but the difference will be in the priority they both attach to the various title they are both struggling for in common. The Europa is the league they both have in common this season and their performance in the Europa from group stage until this point have been really interesting so both team are really going to get far in the Europa and if they ever get to the finals together it's going to be an epic game to watch as both teams are really going to fight so hard to win the title especially Liverpool who's getting this as their last chance under klop.