I see no reason to compare these two different coins. But I still think that ethereum is the best of all, and that it is one of the most powerful and successful projects.
both of them can be used as platforms. but, however, I think waves are still quite far behind ETH. looking at current IEO developments, most of them use platforms from ETH, and not from waves. in terms of price, I think ETH has a pretty good development compared to the current waves.
And then look at waves and what happened with the price of waves and it has been dumping a lot. Waves is a crap protocol that build for nothing. Sasha and the team will always become a party that win the game. An over rated coin should be back on its position.