Research has shown that rhymes are more memorable. But I much prefer this way of saying it from the Weird Studies podcast

Sound—rhyme and meter, or musical measure—whether we’re talking about poetry or whether we’re talking about music is absolutely the handmaid of memory. Of how things get into the heart.

The function of your message is important. The content must be worth the attention.

But the form determines its reach. This is the vehicle of transmission.