Since we process for many programs I can't be in a position of recommending one over the other, but if you want a great resource for researching various sponsor programs, check out
http://www.epochsystems.com/sponsors/.
You'll see a listing of affliate programs and a comparison of what they pay out for partnerships, flat-rates, and/or click-thru's. The program name listed in the left column is clickable and will take you directly to the sponsors site. And, if you are already processing with Epoch, you can trade traffic with any of the other programs processing with Epoch through our EzClick product. Respond here or drop me a line if you have any questions.
--Rand at EpochSystems.com