Both are completely different domain, while one works on a centralized server the other works a decentralized environment and their functionalities are also different, one target the viewer to promote ads and the other do not at all works on the basis of ads and completely content oriented and the eco system are also quite different.
I think the crypto and blockchain is evolving very nicely, so it is better to update and upgrade ourself with blockchain technology and that is why for me steemit is the best.