Bitcoin - It is historical cryptocurrency, like the first vehicle, and I will always honor it...
But it just loses so much for the other coins, that it doesn't seem like a good choice for investments, nor it forks.
Ripple - A centralized coin, it is kind of sad that this is actually the most expensive coin on the market, go for Stellar if you like what Ripple does.
Litecoin - Same technology like bitcoin, might be it will pump like ripple and bitcoin, but in long term, it is also loses.
Neo - Sounds like it lost his momentov for much better solutions like ADA and soon EOS.
Dogecoin - It started like a joke, and should stay a joke.
Sia - This coin now costs too much, when it will cost 2 billion, its storage will cost like dropbox, but the fact is they really do storage like in 80th, I had terrible experience using them, don't see how someone will prefer to use Sia in the near future (Storj has some potential to grow)
ReddCoin - the main thing I ask myself is, wether the proposed solution really needs blockchain, I could find why this project need it.
GameCredits - Every crypto can be game credit, you don't really need one, CryptoKitties prove it (there is now also CryptoPussies lol).
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From @davidconstantine