It all depends on the quality of your team. If for your level you have an above average quality team,
chances are that your league or CL will be by far the easiest, the Cup is notoriously troublesome regardless of your team quality.
My summary is do not assume, some times you get grouped with tough,smart,cheating, or token buying managers, and the strength
of your team is tested, its up to you to prove your worth.
I hope this helps.