App monetization and advertising with Admob, Apprupt, Apprebates, Smaato, iAd

Question

iPhone

Good afternoon, dear Habra community!

At the moment I plan to cooperate with some companies Admob, Apprupt, Apprebates, Smaato, iAd on monetization and advertising of their iOS applications. I can't decide which one is better. Please advise with whom it is better to monetize and also advertise your apps. Share your experience. Thank you.