Top PPC companies, how would you rank them?

window.document.getElementById(‘post-3845’).parentNode.className += ‘ adhesive_post’;If you had to establish a ranking of the best PPC programs, what would you use as criterias and what weight would you give to each of them?
I assume it would have to be 2 rankings, one for publishers and one for advertisers.
What do you think of this?
For Publishers:
– Support
– Payment methods and payment periods
– Statistics
– Usability
– Average CPC
– Average CTR
– Look & Feel + Display speed of the ads
– Country coverage
– Ads formats flexibility
– Referral program
– Company reputation
For Advertisers:
– Support
– Payment methods and payment periods
– Statistics
– Usability
– Volume of traffic
– ROI
– Ads formats flexibility
– Company reputation
Please give me your thoughs and I’ll update this with your feedback. What am I forgetting?

Original post by Exoclick