What is the hardest trophy to win on the game in your opinion? And what is your favou

[Max]

If you are an active manager like me, the league and cup should be rather easy to win.
Champions League whatever has in it s name the difficulty., it s for the champions. Especially the final in which you don t get a 2nd chance to redeem yourself like you do in the knockout rounds or the groups.You have one chance only.
My first cup at lvl 1 was won because my best player scored in the last minute to equalize from a rather unpleasent troll.
The league i won with almost 20 points lead to the 2nd place...

I also agree with you about the CL, it took me until the 4th attempt in the final all against poor managers too, those were painful,

The cup has been easy for me the last few seasons though.