Staking NEO does give you GAS at 5.23% per year
Staking ARK does give you ARK at 11.4% per year
Staking PAY does give you PAY (and ETH as well if you use their product: the credit card)
I ask you, what else is worth staking?
i think that the NEO for my personally. You can try to see from the price of the each token. The gas should be worth than ark. To stake through neo was better and the more profitable rather than ark itself.
Pay seems not good in my opinion. But you can try to make a comparison. And how many you will get from your investment for every project