I think Jennie overall is bigger, but Hwasa benefits from her not releasing as constantly and/or promoting solo. Yeah 3rd gen is kinda a lost cause in general when it comes to successful solos.
I Love My Body had a cute time in the top10 but it was nowhere near You & Me which was unpromoted top3 hit, much less her peaks like Maria and Twit. I'm a B & Somebody kinda flopped as well
PAKs are also all about timing as well and are not really indicative of overall success, there is no planet where that Refurbished Sisters song is bigger than Solo has it had horrible longevity compared to it's peak