Hi There hifiguru,
Look at the top of your screen. The 5 Star programs listed at the top of the page are the best.
Course I'm biased.
The best is REALLY defined partly by you. What works well for someone else may not for you because you need LOTS of trageted traffic. WHat type of site do you have? DOn't drop links just tell us about general categories and maybe we can suggest good programs that would work for you.