ORA,QORA, BTSX and NXT leading the pack in my estimation. But I change my favorites on almost daily bases....
I know I'm supposed to be flogging NFD, but - punter to punter - the best bag you can hold is Nxt. The bagholders who got in at the top of the Boom-Town megapump in February or March of this year were never down more than 60-70% in BTC terms even when Nxt hit its later lows. And - unprecedentedly in the altcoin world - they had a recent chance to sell their bag at a slight
profit in BTC terms.
The contrast between Nxt and other former hotties like Feathercoin, Quark, Dogecoin and even Qora is stunning.
So if you're looking to be a prudent bagholder, and know how to gird yourself and pull the buy trigger during a depressive low point in an alt's price history, Nxt is the way to go.
Sorry about being "do-what-I-say-not-what-I-do" with this advice, but as I explained above I have to try to set a good example by whaling up and HODLing NFD. I actually bagheld Nxt from late winter to late spring and I didn't make out all that badly.