You can use Admob in combination with the other Ad networks such as mobileCore, Appnext, AdtoApp, Appodeal,…etc. Dont put your revenue in Admob only because they can suspend your account anytime, and you will be disappointed. For me, I stopped using Admob. I feel relax and never worry about losing my revenue!
I’m using MobileCore with a goods revenues. It has weekly payments, then I get the money each Mondays. If you are interesed and need more information you can sign up with my refer.