Google AdSense Program VS Affiliate Programs

Google adsense is the best I think. You need a good site though with good traffic. I know people making well into the thousands with adsense

I would prefer Google adsense over affiliate marketting there are many reason for that firstly google is most trustable brand and they will not do any fraud for sure while as affiliate company might do some fraud like they wont pay for all the leads you might generate.

hmm... both are different ways to earn online. For adsense you need a website and lots of traffic(seo, link building, writing, advertising skills etc) whereas for affiliate you need a right product and targetted audience. You can sell what is usually high in demand via email marketing or social media marketing without any investment. So you need to learn what is good for you.