Hello @filipnemec3 and welcome to the Corona Community Forums.
Let me take a stab at answering your questions.
Corona Labs provides 20 monetization plugins for you to use. Of those 20, three run through our Corona Ads dashboard: Corona Ads (the ad provider), Chartboost and AdColony. Corona Ads is it’s own ad network and is powered by a few different demand partners to provide a good fill rate and offers banner and Interstitial ads. Chartboost and AdColony are managed through the Corona Ads Dashboard but are separate plugins and provide different ad formats. If you want to use all three or a combination of the three, you would have to include three separate plugins and code up all three in your app.
But beyond Corona Ads, Chartboost and AdColony, there are 17 other options that do not go through the Corona Ads dashboard where you setup your own account with the partner, include their plugin and get their ads. Many developers will choose to include multiple providers to help with fill rates, though Corona Ads (the ad network) has a pretty good fill rate. One plugin provider Appodeal is an Ad Mediation provider and has very high fill rate and works to deliver they best performing ads. You have options.
As you’ve noted, Corona Ads was designed to be easy to implement. Having PayPal as an option and a lower payout are great reasons to consider Corona Ads.
As for when we will get rewarded and video ads in the mix for Corona ADs, we can’t provide an accurate date because there are too many variables involved. If those ad types are important to you, check out some of our other plugins including Chartboost and AdColony, which are delivering those types of ads today. There is no reason you can’t use them in combination. Use Corona Ads for your banner and interstitial needs and use a rewarded video partner when you wish to give your users rewards.
With regards to AdMob, our existing plugin only supports banners and interstitial ads. We are working hard to bring you a much improved Google ads experience.
Rob