Thank you for listening my advice and creating this comparison with Changelly, and I think you should share something like this on your social media.
Nakitcoins has clear advantage for faster speed, coins can't be frozen, there is no need for passing kyc verification and you have otc service.
Changelly has been existing much longer so it's nothing strange if they support more coins, and I heard about ChangeNow and SimpleSwap but I never used them myself.