I will not be running a ponzi scheme. I am running something similar to freebitco.in and Cointiply, users will complete tasks or view ads and receive "pieces" of cryptocurrency. They will also be able to roll, multiply, and earn interest on any balance that is in their account (meaning you could deposit a balance and earn interest on it like a bank account!) I plan to offer some sort of game, too, that would allow them to earn cryptocurrency.
I do not know how profitable is faucet business is. Freebitco is more of gambling site and cointiply is more of PTC site. Comparing both in one go is not correct. Why do you think user will come to your site when there are already established site?
I think, first try to come up with something innovative and fix your model and plan and start developing.
In above statement of yours I think you are mixing gaming,gambling and PTC and I do not know in next post if you come with +Exchange and +forum ideas too.