which is better adsense or bidvertiser?

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I have just received a pay-out of $11.37 to my paypal account after two months of using bidvertiser. I also used Adsense but for five months I only earn $52.71 way far to a $100 pay-out. I use the two programs in my blog. (see my profile) Since I'm intrigued of what is much better on the two contextual ads may I ask if you are using the two, which is much better?