Most of the airdrops are fake today so I dont find any comparison between them. If you participate in the bounty by doing proper research, then it is possible to earn a large amount of income, which is not possible by airdrop in any way. If you participate on 100 airdrops you will get something from the maximum 2/3 airdrops...
Sorry but when you say 2/3 airdrops, do you mean two-third or 66.66%
OR do you mean only around 2 or 3 out of 100 airdrops are legit and consider profitable?
But honestly, most airdrops now on telegram are fake. The only legit ones are the one being held on a known exchange.