He was a great performer, talented dancer and an extremely creative individual, but he wasn't really a musician. He was an original singer, too, I might add.
His impact on the world of pop entertainment is arguably greater than any other, saving perhaps, as mentioned, Elvis.
Never was a fan, myself. But I respect his accomplishments.
As far as the whole molestation stuff, none of us know and, seriously, it could equally be a yes or no. Certainly there were scenarios that reek of inappropriateness. Jackson was a messed up guy. No one will ever fully know what lurked deep within his unbalanced mind.