Joining Bounty campaign and Airdrops are both offers rewards even though most of them aren't paying due to some issues but joining in order to earn tokens, coins and money is the main goal especially to some new members in this forum.
In my personal opinion, joining bounty campaign is more profitable although we need patience and diligence on complying all the requirements in order to obtain bounty stake tokens.
I joined airdrops last year but I don't think it's worth of my time because most of them are just plan non sense, scam and bogus and most of the time aren't profitable at all.
Bounty campaigns offers us higher rewards but though we need longer and painful time to wait but for me the result is more rewarding than Airdrops.