if NXT grow raise , also ARDR and IGNIS raise too , why ?
For now, I think the reason is that the altcoin market in general is pretty "closely connected". There are very few coins that can escape a bullish or bearish trend. Until now, the "NXT/ARDOR family" has fallen and risen according to the general altcoin market trends.
Ardor and Ignis can rise - in relation to other coins - when their usage increases.
if I'am choose NXT , ARDR , IGNIS , so I will be choose NXT for save on my wallet for hold long term future.
if Iam save NXT always get new Airdrop from NXT example ARDR and IGNIS .
Mmh, if you are holding NXT because of the airdrops, I think you're doing it the wrong way.
First, Ardor also offers the same "advantage": if someone forks the Ardor official client, he must airdrop some of the coins to the Ardor holders according to the JPL (Jelurida Public License).
But more important, you shouldn't hold
any coin only because of airdrops. Really "valuable" airdrops only occur very seldom, and if they occur too often, they dilute the value/price of the original coin. The Ardor and Ignis "airdrops" were unique, because they're the only ones managed by the NXT development team.
Hold NXT or ARDOR if you believe in its value proposition (in the case of NXT, mostly as an ICO platform, and in the case of Ardor, as a scalable blockchain platform, and in the case of IGNIS, as a "better/more scalable and ecological alternative to Bitcoin Cash").
BTW: Last weeks are looking very good, it looks like the sentiment is becoming bullish, even in relation to Bitcoin.