YMMV I guess. Loebs didn't "turn Diana into an actual person" anymore than anyone else in my view.
I think she's an idea with interesting potential that rarely gets utiliziedAnd I've never read the Eric Luke run but don't people like Devastation?
I don't remember anything great about that arc which I think speaks to its quality. Then again, I can count the number of interesting uses of Dr. Poison on one hand.Eric Luke also gave us the only story arc with Dr Poison as the main villain as far as I know, with Pandora Virus.
Also, I found it rather hard to get attached to Loebs's and Luke's characters and found them rather flat aside from a few with some interesting designs. I also think Loebs at times blundered when he tried to tackle heavy topics and began the trend of the Bana being much more filled with unfortunate implications.