Honestly, the operational mechanism of SEMUX network is a bit hard to understand for me.
Validators, are they the same as stakers on other networks?
A staker is a person.
The staker has SEM which he can vote with.
The staker votes on a deligate.
The deligate is a validator when it is in the top 100 of the deligates.
So, if you vote in the top 100 (validators), then then forge new blocks.
Each block forged has 3 sem going to the validator.
Now, it's up to the validator if they pay out a fair share to the people that voted in to make it possible to become the validator.
If you want to know which pays better, then go to the top of the list on websites like
http://pool.7u.org which keeps track of the current position of validators by best paying.