Exactly why there are too many low quality posters participating in the Stake campaign is open to debate. Having said that, there is a big difference between the two.
We must not forget, there are some very good members participating in the Stake campaign. Feel free to disagree with me, however I believe the only reason they are there is because their name can be cited by the campaign managers when accusations of spamming arise.
This is a difference between Rainbet and Stake:
Rainbet
No, sir. Rainbet has the largest weekly payment allocation, around $9,060 for its 174 participants.
However, Rainbet has a selective manager team.
Rainbet only pays for 20 posts per week, which minimizes spam from each participant.
The manager does not maintain participants who have financial misconduct RedTrust, especially those proven to have committed fraud in signature campaigns or bounties.
Stake
Their weekly payment allocation is around $5,000 for 65 participants.
Stake pays up to 60–70 posts for all participants, which creates a lot of spam from a single participant who makes posts within less than a 10 minute interval.
The manager is less selective, even cow, chicken and buffalo farms with RedTrust tags are still being used, possibly for that spam.
From these differences, we actually already know which one is better.
This data was taken from both spreadsheets for comparison.