My top 5 coins for short term are different from top 5 long-term coins. For short-term trading, i choose coins that are ready to pump after so many days of sideways action and this kind of sudden pump after consolidation will give you easy returns of 15%-20% per trade. Best 5 coins for short-term trade are IOTA, Siacoin, Stratis, Neocoin, Waves. And for longer term investment you need to choose coins based on their stable trend and volatility which will save your profits from eroding away during the deeper correction and for this, I choose coins like Dash, Bitcoin, Ethereum, Litecoin, and bitshares.