NEM is the best tech, but I'd pick Ardor because it's trading at a lower market cap and a competitor to ETH that's better scalable. Ardor has one of the most attractive market depths on poloniex right now, with plenty of buy limit orders in place, showing plenty of demand. Ardor was made from scratch by the NXT team, and includes child chain technology which will make is more scalable than ETH.
Burst is a one trick pony... using hard drive space is interesting, but that seems to be the only thing the coin has going for it. BitAsean is a gimmick really.. you don't need a currency for a specific region.. any currency can be traded in any country.
Coins I like not on your list...
PascalCoin... blockchain trim technology, where account numbers hold your balance and the transaction data gets trimmed, resulting in a relatively small max blockchain size, along with enhanced anonymity since transaction data eventually gets trimmed. 85% of all the coins trading are held in poloniex's wallet right now (account number 86646-64)
Xtrabytes... static node technology where each node confirms the transaction
Syscoin.. has various features including a version of blockchain trim and has been under gradual development for some time. A relatively mature platform.
VIACoin... it's LTC on steroids.. under active development working in segwit and lightning network with some big whales behind it.
Ark
Bitbay
Shit.. I mean Shift (yes I own this one)
Nice list, i Like VIA coin as well. Ill have to take a look at PascalCoin and Xtrabytes, thanks for the recommendation !