Azazel wins this season. Not only he's got the best lines, he sure knows how to be a teacher.
The producers expanded the setting at hyperinflationary speeds, so much so it was almost comical.
High School DxD used to be a personal guilty pleasure, but I'm upgrading it to the
"another way for a harem comedy to be done right" level. After all, there were plenty of fights to watch when the ero got silly.
I sure wish DxD outdoes Infinite Stratos, which has been nothing but squandered setting with SSDD (same shit different distributor).