im sorry to say it but after a big study between CLOAK and RZR. My money is on CLOAK just compare their current work and whitepapers. CLOAK already has their p2p system in place and the OneMarket will also become a reality. This is a new multi million $ industry and i compare CLOAK to BTC as thats how much the model threats to takeover it given it recieves the publicity
Please read this as part of your study,
http://www.coindesk.com/eavesdropping-attack-can-unmask-60-bitcoin-clients/With Cloak you're sending your transaction to a website, Now you're depending on a third party. I don't care to put my trust in some website. You may as well use Visa or Mastercard to provide a layer of anonymity between you and the merchant.
This is the complete solution in one package. I encourage you to get a few RZR right now and try the technology out, this isn't a pump and dump coin. It's just a coin ahead of its time. I assure you when you see how it integrates with tor you'll never look at Cloak and Darksend as a solution again with any merit.
Just wait till the SMS gateway - that's what they call a disruptive technology.