What you said is true, currently the three teams must be able to beat every opponent to reach the semi-finals, besides Liverpool, Leverkusen of course AC Milan can be our favorite for a team that can reach the semi-finals later, for the match against Roma of course it is not a difficult match in my opinion because so far AC Milan has a good record and performance over Roma in the league, I personally would not deny that Milan's consistent performance in the league will be able to show also in the Europa League at this time.
My view and yours will be a little different, if you look at Milan'. history, Surely you know why Milan has been called a giant team in Europe because of their extraordinary experience in European competitions so far, I think precisely compared to Leverkusen, it seems that AC Milan will be a very strong opponent for Liverpool or Leverkusen If they enter the final later, I personally am quite sure if Milan will be able to meet one of the teams between Liverpool and Leverkusen in the semi-finals and I am quite optimistic to see Milan reach the Europa League final this season.
The EPL is competitive too and so focus should be put in it but the UEL trophy to me would actually have more worth than the EPL. The UEL journey may not necessarily be stressful for them as Liverpool tends to be better than the teams in the tournament, their tough counterpart will definitely be Leverkusen because they've had more or less same domestic league results as Liverpool and the team is everly eager to strive to win games and they're aiming for the trophy. It's good that the both of them are in the same condition and then also have the same goal and target in the domestic and continental tournaments too.
I believe that Liverpool has everything it takes to be champions in this season's UEL, their only challenge may be Leverkusen though but they're definitely up for a competitive game. They've got the players and skills with both teams having the same goal and vision ahead of the competitions too. They're the two strongest and toughest team in the contest and I won't be surprised if they conquer all their opponents till the final stage.
In the Europa League, there's been top contending teams from the start till the current stage of the contest. Even though days back, the playoffs stage was concluded and there we saw few teams earn advancement tickets. Well from the beginning of the tournament, we know that it'll only be the tough teams that'd survive. Also predicting the winner this season would be hard as there are a number of tough teams to pick from.
The highest we can do is to just analyze these teams based on their overtime performances this season and bringing that in the picture, the highest probable winner would be Leverkusen, then Liverpool and any other team behind. In essence it's safe to say that if the draws are favourable, then Liverpool would battle with Leverkusen in the final game of the tournament. For me, I'll really love to see the heated game between Leverkusen and Liverpool in the UEL soon though and I have a feeling they'd be made to play against themselves.