Google adsense is a google owned package which helps publishers to monetize their websites, videos and other packages with premium ads in other to make money. Since inception in March 2003, google have continuously made changes to their policies that will help their publishers as well as advertisers on the adword platform. Notwithstanding that these policies seem to get more severe in the side of the publishers, it has also helped to improve the product.

There are many advertisement platform online such as

Media.net
Clicksor
BuySellAds
Chitika
Infolinks and others……
However, these are reasons why adsense is the best amongst all these..

1. Google adsense is highly remunerative
Google, being the father of internet (permit me to say) tries to make its product outstanding, standard and leading in the market. Consequently, they try to maintain the value of their products by serving its users well. In Google adsense, CPC or cost per click is the amount earned by AdSense publishers every time an ad on their website is clicked. The amount can be as low as $0.01 or higher than $10. This depends on your choice of keyword, location of user and also by the amount a Google AdWords advertisers bid for the particular ad.

2. Google also pay you for impression on ads
Google adsense does not pay users only for clicks. CPM in adsense means cost per impression. This means that, for every impression made on your ad, google pays you. That is why websites of higher traffic are reliable to earn more.

3. Google adsense serves Targeted ads to Users which increases clicks and CPM
Google uses ads serving platform called double click. Whenever you browse the internet, google saves your cookies. This enables them to know your interest and serve targeted ads to you whenever you visit a page with google ad. Consequently, this will increase clicks on ads and impressions too. This ability makes them outstanding and exceptional.

4. Google adsense platform is user friendly
Though, to get an approved google adsense account is a little bit stressful. But, the platform is very easy to use. It does not require any programming or web designing skill. However, google have different products like gmail, google play and others, which you can access with just one google account. Therefore, you can as well use this without having to open a new account.

5. You can earn by just uploading videos on youtube
Youtube is owned by google. Have you ever asked yourself why some youtube users seek for people to like their youtube channels? This is very simple. Whenever a user views your video on youtube, adsense pays you for that. So, the higher viewers you get, the higher your earnings.

These and others that were not mentioned made google adsense have edge over other ad serving platforms.

Publishers, it is left for you to make your choice!!!
Shear your views below…..
SOURCE: http://www.gistpool.com/2014/12/5-reasons-why-google-adsense-is-best-ad.html

yes @op. Let me add more..

6. Google adsense pays you direct to your bank account

alternative is best cpmserve is best network of cpm ads i am earning with this
in this month i have generated 340$ in 9 days