(1) and (2) are two completely different questions!

the best privacy coin does not necessarily get pumped big time, and a coin that is pumped big time is not necessarily a good privacy coin.
if you are looking for a coin with real anonymity features then you should look into the technical aspect of it, and i say Monero fits the profile better than the rest.
but if you are looking to make profit then it is a very different story. a shitcoin can give you profit beyond your imagination whereas a good coin may not even move that much!