At the moment, I've been reading through the Highschol DxD series. I enjoyed the first season of the anime and I wanted to see how much the books were different from the series itself. I'm presently on the fifth book (as I splurged last year and bought all the way up to 15).
I've honestly been enjoying it. It kept the raunchy (which I wasn't surprsied) but I could feel the heart and the care the writer was putting into it.