what is better?

poo. the answer is always poo

If you have targeted traffic then I would use the Affiliate marketing. I think both have some advantages and disadvantages.

i have traffic from fb and g+

anybody else wants to share thoughts about it?

Have to A/B test. PPC you get small money without a conversion needing to happen. Affiliate model can reap higher income but only if conversions are there so basically sending traffic for free on hopes of a sale so that decision depends on average conversion ratio. If the affiliate program converts and has nice landers then usually affiliate model will trump, gotta peep the affiliate process click through and ask would I buy this at this price, is the lander optimized etc... Basically don't send your traffic away for free to landing pages that have an overpriced product or that suck and aren't optimized to convert. If you're creating your own pages for the affiliate program same shit A/B test to see which page setup brings better conversions. Personally I use both models depending on the project.

thank you for nice advice i put both on same site ppc earned 500usd but affiliate amazon made 0 sales and 0 usd so may be i need to know how to convert affiliate sales

thx again