There is nothing to doubt about Liverpool and Bayer Leverkusen because after all, the opposing teams such as Atalanta and West Ham although not a weak team at all. But still, at this moment that Liverpool and Bayer Leverkusen are the best teams, so of course Liverpool and Bayer Leverkusen have a great chance to be able to advance further to the final match of the Europa League this season. No matter about the reasons or good scenarios for Atalanta and West Ham because of course, Liverpool and Bayer Leverkusen will be able to maximize the good moments in this season to get the trophy. Afterall, Atalanta and West Ham are also teams that are not completely stable and therefore, it is difficult for Atalanta and West Ham to beat Liverpool and Bayer Leverkusen in this knockout phase.
Yes, right. Even though in football anything can happen, looking at the performance of Liverpool and Leverkusen it seems very difficult for them not to beat Atalanta and West Ham. As you said, Atalanta and West Ham this season are less stable, this can be seen from their respective domestic leagues, apart from that in terms of quality and squad, these teams also lost to Liverpool and Leverkusen. I have no hesitation in betting on Liverpool and Leverkusen winning in the first leg.
Liverpool certainly don't want to miss the opportunity to win the Europa League trophy this season to give the most beautiful gift to Klopp, who will soon be leaving Liverpool. Likewise with Leverkusen, they are safe in the Bundesliga. They only need one more match to win the Bundesliga trophy. So of course all their strength and concentration is currently focused on the Europa League.