Really depends on a lot of factors :
-which software
-license jurisdiction
-customer support
-attitude
-brandname
etc
usually we see the new US faced brands struggling to survive, very risky to lose all referrerd players while the owners can use these leads again.
about aggressive commission deals :
these are short term gains that destroy the business and stimulates greed amongst both programs and affiliates.
we all know a 25% rev.share on guaranteed real net sales are best for both, anything higher will lead to ways of shaving our earnings either by cross promotion and or untagging players or simply alter the stats regarding real deposits etc.