Rakim

Rakim is considered a transformative figure in hip hop. He helped to pioneer the use of internal rhymes and multisyllabic rhymes, and was among the first to demonstrate the possibilities of sitting down to write intricately crafted lyrics packed with clever word choices and metaphors rather than the more improvisational styles and simpler rhyme patterns that predominated before him. Rakim is also credited with creating the overall shift from the more simplistic old school flows to more complex flows. Rapper Kool Moe Dee explained: "Rakim is basically the inventor of flow. We were not even using the word flow until Rakim came along. It was called rhyming, it was called cadence, but it wasn't called flow. Rakim created flow!"

Paid in Full was named the greatest hip hop album of all time by MTV in 2006, while Rakim himself was ranked No. 4 on MTV's list of the Greatest MCs of All Time. Steve Huey of AllMusic stated that "Rakim is near-universally acknowledged as one of the greatest MCs – perhaps the greatest – of all time within the hip-hop community". The editors of About.com ranked him No. 2 on their list of the 'Top 50 MCs of Our Time (1987–2007)'. In 2012, The Source ranked him No. 1 on their list of the "Top 50 Lyricists of All Time".

Description above from the Wikipedia article Rakim, licensed under CC-BY-SA, full list of contributors on Wikipedia.