Qtum is blockchain, which one use more programming languages, and technically stronger. But ETH have faster speed, and it's more understandable for people
I've applying for last two months, and I've earned 90$, they are mostly shit coins, but some are ok. Like DATUM, REBL but there are people who earn serious money by applying and filling the airdrop form.
Hmm..90% for just filling the form is not so bad, don't you think?)) If you want bigger profit join bounty campaigns.