I don't think that it is reasonable to compare these two coins because in my opinion they are completely different. Waves is a decent alt but not a rival to btc...
Waves is more of a lesser rival to Ethereum then a possible candidate to dethrone Bitcoin the king.
But I really really like this platform and I think it is underestimated right now I could see it getting it to top 5 in the future
if XRP can pass ethereum any coin with the right connections can and some are more deserving then others.