Market Health vs Clickbank - My experience and results!

Hi everyone i want to discuss my experiences with some different affiliate networks promoting good performing products. The first network is Market Health and the second is clickbank. There are a lot of threads on this forum about these 2 places to make money as an affiliate. I have found like many people that my conversion rate isn't that great with clickbank unless you have a well established product you're promting ranking well in google etc.

I have made good money through this i.e. via Clickbank but overall for the amount of traffic i have been getting and the work it takes to get ranked in the first place i haven't found it worth my while. I have tried ppc here but withought much success, although i'm sure others have had success.
Market Health is a different ball game, i find that the products i am promoting are converting better overall but there are really strange stat results i have had. For example i have been promoting a top selling product and ranking well in google and had loads of traffic and some times not made many sales, and other times when there was very little traffic it registered sales so i'm not sure what to make of their figures.

However, i have to say that for the work involved creating similar sites for clickbank products, EPC'S and to get them ranked in google i have done better overall with Market Health than Clickbank especially when i have to factor in refunds with Clickbank.
I am interested in other people's experiences here and if they have found similar to me and some of the points i have made or not? In addition if people have made successes with clickbank or Market Health etc. through PPC i am interested to learn where and how they went about it!
Cheers