I say Blogger - it's simple to use if you're not tech-savvy, and in fact if you go to the templates section, there's an option to insert AdSense, though of course you need an account to get the revenue!
When it comes to AdSense, it's easier to start an account with Blogger. But when it comes to blogging itself, I prefer WordPress. I'm not really an expert on both (I use WordPress for WebTech).