When it comes to difficulty, it depends on how good the team in particular is.
If you’re the best team in the competition, the Premier League is easier than the Champions League. The league format means variance doesn’t have as big of an impact and so you’re less likely to fail to win the competition because of a freak result.
If you’re a somewhat weaker team, I’d say the Champions League is actually easier, even though the average quality of opposition is higher, because it’s easier to get a handful of good results against better teams than it is to outperform your level over a 38 game period.
When it comes to difficulty, it depends on how good the team in particular is.
If you’re the best team in the competition, the Premier League is easier than the Champions League. The league format means variance doesn’t have as big of an impact and so you’re less likely to fail to win the competition because of a freak result.
If you’re a somewhat weaker team, I’d say the Champions League is actually easier, even though the average quality of opposition is higher, because it’s easier to get a handful of good results against better teams than it is to outperform your level over a 38 game period.