A fascinating thread. Thanks for starting it.
Interesting for me because by day I’m affiliate manager, by night an affiliate 
which gives me the added advantage of wearing both hats.
1. As an affiliate I’d want a tenancy fee but understand that if I don’t deliver profitable players then the affiliate manager won’t repeat their spend with me.
2. As an affiliate manager I’m happy to do tenancy fees but only for the right sites. And only continue it if they perform.
Mixing this with the rev share model for me is perfect on both counts because…
1. As an affiliate it gives me some upfront cash to justify me putting one brand above another and also I get the reward of benefiting from the increase in traffic I’ll then send it.
2. As an affiliate manager I can put the tenancy down to ‘advertising’ and use it to get our brand out there. Whilst also minimising the over exposure risk with a good rev share deal.
Personally I’ve been burned too often on CPAs (with both hats on) so try to steer clear of those. Unfortunately there are a lot of charlatans out there who try to abuse the system and they ruin it for everyone else – on both sides.
Not sure that this really responds to the thrust of this thread buy I think a realistic tenancy fee is more attractive than 3 months increased rev share.