Well, it seems that my crystal ball is not in sync with yours and it needs Syncthing to be installed.

Seeing Bournemouth and Sunderland in the list of top contenders is something I would never have expected. A miracle would need to happen for this to occur. Regarding Palace, yes, they may be there, as they showed good playing in Premier League last season.
The EPL clubs are the only potential teams to win europa league. I know we have benfica, but feel weird how their performance has changed a lot. We have also some top serie a teams such as Juve and Milan, but these teams have always been shite when it comes to the europa league.
So i'd prefer to put EPL teams as my favorite here.
Yes, it's a shame that such a good and quality team won't be playing in the Champions League this season, we all remember the great match between Benfica and Real last season in the Champions League.
I've already mentioned that Hearts is a very bad team, that they suffered a disaster against Sturm in the previous round and I didn't expect Benfica to have any major problems with them.
Maybe it's not a bad thing that Benfica isn't playing in the Champions League this season, but in a weaker club competition, the European League.
This might be their chance to finally win a European trophy.
I really miss the drama between Prestianni vs vini, but it's passed and disappointed how they're downgrading to the europa league. However, they are the same team who played last season, but they have not proven themselves when they fought EPL teams. They often lost to the EPL teams, and the last time they got thrashed so hard by Liverpool.
So we have to see how strong they are to fight EPL teams before we can put them as contender for the trophy.I believe once the outright odds will be released, they will be slightly below EPL teams.