Without even factoring in anonymity and other features, XC is guaranteed to push above Blackcoin. The 1% stake of Blackcoin isn't high enough incentive to keep network secure. The 3.3% XC interest combined with fees for running a supernode allow you to have a pretty nice virtual checking account.
For anyone wondering just how proof of stake works, here is my explanation below:
Since almost everyone I see doesn't understand the economic implications of stake reward, let me explain it for you:
Looking at proof of stake in a vacuum, the stake reward creates decentralized inflation, meaning if everyone stakes, you stay at equilibrium. What PoS is in a nutshell, is a tax on people who don't stake to support the network. Everyone who does stake is unaffected, anyone that doesn't stake is punished. It's not a comparable process to Bernanke throwing money out of a helicopter or anything like that.
Now that the implications of proof of stake in a vacuum are defined, you have to examine it's effects when placed in the real world. Some people argue for a large stake reward, but if the coin is to actually be used as a currency, it's extremely inconvenient for vendors to have to deal with a monetary supply that has enormous percent changes each year. If you used a number like 10%, well, the vendor now has to alter his prices by a large amount on a constant basis.
When you consider the percent of coins destroyed through transaction fees (probably around 1%), and the amount of coins that people will lose per year through accident or death (conservative 1% low ball figure), a stake reward of 2-5% can mostly be ignored by vendors without having to alter prices on a constant basis due to the money supply. This coin in particular chose a "magic number" right in the middle of what I consider the safe zone, where 2% is a little low, and 5% is a little high.
