It depends on the album too. The first Stone Roses record isn't a lyrical masterpiece, but it doesn't matter in this case. The Beatles obviously weren't the best lyricists of their generation too. On the other hand, Enigmatic is more about Niemen's way of singing and interpretations although the lyrics are classic Polish poetry. However Janerka's lyrics are as I said, truly exceptional - playing with words, their meanings, ambiguity, hidden allusions etc. - I think they'd be impossible to translate.
Janerka's lyrics are great, I never questioned this. I just think that unlike some singer-songwriters like Dylan or Mitchell words aren't his main strength and his music can be easily enjoyed by people who don't understand what he's singing about, particularly, if they're not very conterned with lyrical content in the first place.
Magazyn Muzyczny's lists of best Polish albums offer a rich tapestry of musical heritage and creativity from Poland's diverse music scene. Golden exchange id