Tottenham and Manchester United are currently in a very bad shape so I don't think we should expect much from these two teams and also like in previous seasons in the Europa League there were quite a lot of surprises that happened so I think for some of the favored teams it is not guaranteed that they will be able to go further and overall I see that the teams that are still competing in the Europa League this season have almost the same quality so it makes it difficult to predict who will be able to become champions.
This has been why from the beginning of the europa this season I had kept my expectations on these two very low because I taught of the chances that they could later in the long run not be able to maintain their fiemm and strength enough till the end of the season to win the title, especially Manchester United ans it turned out that Tottenham is now in the similar situation as Manchester United, just like last season, it could be possible a least expected team could take home the trophy.
I honestly had a bit of hope to see Man Utd in the final but after seeing the way they have been playing lately in the Premier League I feel like it is too much, even reaching the quarter finals I am still skeptical, the same goes for Tottenham. Both teams are playing very badly, I don't know what the problem is, but one thing I am sure of from Man Utd's slump is that they don't have a reliable attacking player, while Tottenham under manager Ange their quality has declined.
Another option I would like to see is Bilbao, I think they can reach the final.