Agreed, Freeagecard does the best for my traffic, makes more per click when you add in the rebills. But Freeagecard is not a true "free" avs since they charge for 1 month access to a porn site when the surfer signs up.
As far as which ones you will/will not have problems with, 99% of the time you will have problems with any AVS you use, just which one will hassle you the least to make you money.
Universal Pass, and freenetpass are "true" free avs's, xxxpassport is not, they bill one month on another pornsite when the surfer gets his free xxxpassport id.
On the truely free AVS's, SexKey is offering $20 a free signup this month, maybe the way to go while that offer stands.
