There is a heirarchy of cheese here somewhere. Maybe we can nail it down.

The best lyrics are composed with words that express the idea vividly, but without resorting to word combinations that have been overused

Therefore, while finding perfect rhymes is desirable in one way, they are the very same word combinations that are most likely to be trite and overused.

A NEAR rhyme, especially when it manages to capture the essence of the idea, is a marvelous thing. Even more marvelous is a perfect rhyme that manages to employ a combination of words that haven't already been married in thousands of well-known songs.

BUT, a near rhyme that adds nothing to the mix except a matching vowel sound pretty much ALWAYS comes across as a failure to find the right word.

If you can only have one, I prefer substance over form every time. Vivid imagery and clever phrasing takes precedence over mechanical use of terms.

https://www.dropbox.com/sh/ey71h8ep047758h/AAC12jNM0Hz9Q8zsh5iDeqNHa?dl=0