Pros / Cons of different Ad Networks?

Getting Started Newbie Questions
#1

(I couldn’t find a forum post on this - let me know if I missed it.)

I am looking at putting ad’s into my game, but was wondering at the pros and cons of all the different ad networks that Corona SDK supports now. Has someone already put together that list - just want to learn from others before I invest into having to sign-up for all of them.

I just have a couple of initial questions (I’m sure there are more, just don’t know what to ask yet):

  1. I want to do a pop-up ad at the end of a level, similar to what Dead Ahead has at the end of their levels.

  2. A way to show video ads to earn in-game money

I think #1 is possible now, just have to find the right network. Do any of the networks do #2?

Thy