Personally I like the production on AP a lot more than AngHellic. I have never been a Don Juan fan, ever. Even back when CBTS came out I thought to myself, why is the greatest rapper in the world wasting his talents on such horrible production? I thought AP was an insane album, but hey everybody is entitled to their opinion.
As far as the flows and topics, well Anghellic has better subject matter but AP has some of the craziest flows I've ever heard.