The poll is biassed in my opinion or the thread has been poorly researched.
The best altcoin is the one that gives most value either by pump and dump or by stability.
There are many coins that can make it. No one knows. There are many coins that give good value if pumped and dumped.
If you look at the coin market cap for most adopted coin (http://coinmarketcap.com/) then Feathercoin is #10 whereas Worldcoin, Quarkcoin and Megacoin are higher yet not mentioned in this thread.