I think to join in bounty campaign is more effective than join in airdrops but we need to wait for at least 3 months before we can see the tokens is launch in the market. but we could still join in the airdrops programs but I don't know how long the airdrop token will be worth and so far, I still wait for the token getting list in the market.
First i want to say bounty and airdrop have the same direction that is to gain money and in this step is cryptocurrency. In airdrop, i feel that more than 50% is not distributed. rMost of them are just advertisements. Although the process of doing bounty is relatively long and complicated, the chance of rewarding with rewards is relatively high. That is the different so now all is depend our choice.