so NXT is more secure 
NXT to the Moon 
NXT to the Moon Well, maybe it will...but we'll have to wait a long time.
That's actually better than a quick bubble. There's enough time to poke around with the nuts-and-bolts and see how it works.
Standalone POS coins have many advantages over NXT - plus they far less resemble a bullshit hyip pyramid scheme (which after the initial POS influence on other developers NXT had - that is all it deserves ever be)
Your opinion, of course. Myself, I'm waiting until 2015 to see what Nxters have come up with innovation-wise. You may not know this, but it's already set a standard that's much better than the one set by (say) Dogecoin. It's the first new cyber that was coded from scratch to be a full 2.0 coin. NEM and eXocoin are both in development, and there's a new IPO, Numus, that hopes to produce the fourth. Next year, the joint's really going to be jumping in this area.
I hope all of them succeed hugely, for more than mercenary reasons. If they do, they'll set a standard for altcoins that'll be a huge relief for the crapcon-haters here: in order to make serious money, you have to do serious coding - from scratch. What could be better for the field?
[P.S.: I know about Mastercoin, but it's a protocoin because it depends on the Bitcoin blockchain. The ones I listed above are Bitcoin-independent.]