I'd put both Rucka runs here, particularly Hiketeia. But well-regarded runs are very different than well-regarded self-contained GNs, and her offerings in that regard are VERY scant compared to Batman and Superman. You also have the huge impact BTAS made.
That said, WW's 2 for 2 with Black Label books. Dead Earth was controversial with fans but really well-regarded generally and Historia is very much on track to become not just a character tentpole but a genre classic. Hopefully that gets more writers/artists interested and incentivizes DC to greenlight more self-contained projects.