Benfica has a better chance of advancing to the semifinals because they are a little more consistent than Marseille, that is if we refer to their position in their respective domestic leagues. On the other hand, Liverpool and Leverkusen will certainly be a threat to any team in the semi-finals, because these two teams are strong candidates for winning the Europa League trophy.
Marseille isn't looking like a team thst has got the firm well enough to be able to get to the next stage of the Europa which happens to be the semi finals at this point because their inconsistent a d they have got a very poor rythym in their style of play a s they aswell don't have a good tactics enough to use against benfica such that they will be able to get victory over them in their game but then I'm optimistic Marseille to an extent.
In the french league which happens to be where they participating as their local league, Marseille isn't amongst the top teams this season , they have been really inconsistent with their performance as against their performance before with which they were known for because they were a very good team and was almost amongst the top three team in the french league almost every season but then it has turned out that they are now in a very poor form and may not be able to really get such performance again which they will struggle against benfica.
Benfica on the other had has been fair in their performance in their domestic league and has not been doing poorly although they are average but they are more consistent wi