I will admit, I find myself drawn to James/Harry even though it's by definition an AU, and I usually avoid AUs.

I prefer the "long lost" scenarios to the stories where the Potters never died and Harry is totally raised by James.

I suspect some of the Lucius/Draco abuse comes from Jason Isaacs' portrayal. In the book Draco is chastised for having lower marks than a Mudblood, not smacked up by the pimp cane.