Interesting post!
In order:
1. Sci-Fi-Casino
2. Party Poker
3. toss up on a few here, Havana Club, Ultimate Bet, Referback
I think 1 and 2 are the most reliable with stats, best customer service for affiliates, excellent player retention and are the most prompt payers.
We do make the most money with Sci-Fi overall, but the other reasons keep them #1 even on the months we don’t make good money with them.
Really a toss up for #3, I would have to say over the last 6 months or more, I would only be able to pick a top 2 and feel real good about it.