Both are unrated. Only go for it if u are sponsored. But key difference:

Ica is a lot more structured coz u have lessons and modules. Gives u a framework what to think about but let me tell u. U can’t design a ewra for eg becoz of going to ica. I see it more as networking with tutors or classmates la.

Acams just self study and very us centric tho aml concepts still relevant. Not so practical in a sense but reinforces your knowledge if u r doing aml for a while