Muni means thoughtful or great thinker or great poet and Maha means still greater. So there is no comparison with Vyasadeva with any writer or thinker or philosopher. Nobody can estimate the scholarly importance of Srila Vyasadeva. He composed many millions of Sanskrit verses and we are just trying to receive a fragmental knowledge out of them by our tiny efforts only. Srila Vyasadeva therefore summarized the whole Vedic knowledge in the shape of Srimad-Bhagavatam which is known as the ripened fruit of the desire tree known as Vedic knowledge. The ripened fruit is received hand to hand through disciplic succession and anyone who does this work in disciplic succession from Srila Vyasadeva is considered as representative of Vyasadeva.
Letter to Bali Mardan, 25 August, 1970