No reason to start yet another troll war imo. SDC and CN coins have chosen different route than DRK, they rely on hiding the mixing in the blockchain encrypted, whereas DRK removes the mixing from the blockchain altogether. Because we don't know the future (possible math breakthroughs, quantum computers) we can't say with total confidence which approach is better. Both are very likely good enough for the foreseeable future. Some super smart people (like AnonyMint) claim that keeping the anonymity off the chain is the way to go though.

So what we have left that will make a coin stand out (or sit down), is adoption, usability (how well it actually works), PoW vs PoS aspects, other features (like instant transactions), investment opportunities (like masternode rewards and other potential services running on top of them) and lots of other things. One good thing DRK has going for it is that it has had its pumps and dumps and distributions, and is quite mature already. Monero for example is generating so many coins every day that the market can't simply absorb that amount, hence the downtrend. And the young (compared to DRK) PoS coins have the distribution that you would imagine them to have.