They might be in the PT/Zodiacs' level (probably top PT/Zodiac, thus being capable of beating any of them), but Razor is stronger than Bisky IMO. Bisky's hatsus are support abilites, so she's behind Razor in terms of actual combat capabilities (she might be a more skilled nen user, but she has a disadvantage in terms of resources, unless she has an unknown combat ability yet to be revealed).
Considering that, I think that Bisky would lose against most of the top PT/Zodiacs and beat the average and weaker ones, and Razor would win against anyone bar Chrollo (and maybe Hisoka and Uvogin).
Considering that, I think that Bisky would lose against most of the top PT/Zodiacs and beat the average and weaker ones, and Razor would win against anyone bar Chrollo (and maybe Hisoka and Uvogin).