I notice that in most of the exercises, "J'aime beaucoup" is often used when followed by a noun, (e.g. J'aime beaucoup mon cousin Benjamin; Elle aime beaucoup les livres)
Whereas "J'aime bien" is often followed by verb (e.g. j'aime bien rester chez moi)
I am just wondering if they are completely interchangeable and if there is a tenancy of beaucoup use more with nouns and bien more with verbs.