According to me some best coins that have potential to give good returns in long term investment are ETH, WAVES, OMG, ANT, LTG, LSK. These all are some large cap coins and have enough volume. They'll grow eventually in future. Best for long term holding. But never leave BTC. Do have BTC in your portfolio.
Your investment list is very good because I am sure these altcoin will grow very well in the future because they have good communities and are always looking for ways to develop the project. I think ETH and BTC are my two good choices