CPC vs. CPM Pros/Cons Is one straight out better?

Hey every one,
First off, I am a publisher not an advertiser. I can not decide which form of advertising I should use to monetize my site, CPC or CPM.
I never used advertising on my previous sites, but I am launching a new shopping comparison site and can not decide on which I should use.

What are the benefits of CPC and what kind of websites is it best for?
What are the benefits of CPM and what kind of websites is it best for?
Thanks a lot for the help?!

See original post by Omar_Khan