Describing a shitcoin varies from person to person. An alt that made you good money doesn't mean that it's a promising one. So please be honest, and if you ever have to sell your btc, what would you buy with them?
My first vote to Monero, for privacy reasons. Fuk ZEC and its "optional privacy" which is NOT a privacy actually. DASH? Lol, no privacy. Another bitcoin clone methinks.
Second one is Ethereum, there is no serious competitor in smart contract area.
I cannot find third one. Maybe NANO.
Hellz yeah +1 for Monero.
I love how Monero has consistently been for privacy all the way. Monero even first caught my attention when they blocked centralised ASIC mining by changing their mining algorithms. They still do change those algorithms regularly years later and are still always promoting the spirit of cryptocurrencies as private, decentralised, and freedom-giving.
Wouldn't be surprised if Monero survives and outlives most altcoins.