ADA seems like a good idea, but they still dont have a prodct if I am not mistaken. ETH is not perfect and may one day be deposed, but it still dominates the ICo market right now and they are working on their scaling issues. I think though, if any project has a chance to take on ETH, it is EOS. DPOS blockchains can just handle so many more transactions and are more flexible in the coding language that can be used. Always good to diversifiy though.