Which is the best alt coin which isn't just a pump and dump coin?
Really this is something which can not be answered one way. In my opinion most of the coins are shitcoins, no one will accept them as official payment method anywhere.
I am sure that lot of people will post their favorite coins they rely on and have mined and hold. Just do not listen and invest in any of them.
BTW the moment is perfect to buy BTC right now, because you will not see the price so cheap may be never again