Many people say different altcoins are better than others but I don't really see any proof as of yet. What altcoin should I invest in? How do I know if an altcoin is succeeding? I have many questions, but I can't seem to find an answer easily :S
Well, tell us which coins you prefer and I'm quite sure you get all the answers you need

In generel I like alt coins with unique features in regard to other coins. It should have something really new and useful.
Secondly the support of coins decides about success or fail.