I don't think that Wave coin is better than Bitcoin, at least at present time of crypto development, Bitcoin still remains the number crypto, and despite the fact that Wave platform can be used for decentralize trading and crowdfunding, Bitcoin, been the first crypto still remain the king.
I think in the future, we may see how this competition may strive but, in my opinion, i think that the Wave platform colud compete with ETH favorable and may become the number two coin as per the coinmarketcap ranking.