I am just watching the new matches in the Europa League and just realized Sevilla and Inter wouldn't have to face each other except in the finale. These 2 teams have been the best ones so far, and let's remember Inter finished in second place in the Serie A, only 1 point below Juventus.
Inter also has 2 awesome strikers, Martinez and Lukaku as well as excellent midfielders such as Eriksen and Brozovic. In my opinion, Inter is the team that is most likely to win the Europa League this season. They have a solid defense, but also very effective strikers and competitive midfielders.
Sevilla, on the other hand, can easily be considered an expert team when it comes to the Europa League. They are the club with the most Europa League trophies, currently at 5 trophies and all of them have been won from 2006. They even managed to win 3 Europa Leagues in a road between 2014 and 2016. They are like the Real Madrid of the Europa League :P
So even though Inter is a better team, Sevilla is always a serious candidate. Manchester United is also a historic European team but they are currently going through a very bad period and I don't think they will be able to beat Sevilla in the semifinals. This is if both of them beat their rivals in quarter-finals but I believe this is a given.
There is always the chance a surprise might happen but Inter and Sevilla look like the best team in the tournament. Which one has the higher chances of winning, I would write about this one we are closer to the finals.
For the moment, the next matches are going to be in the Champions League, with Real Madrid battling against Manchester City and Juventus doing the same against Lyon. Good football for sure.