Bruh I have always been talking about the POTENTIAL of 10S relative to Limitless + 6E. This isn't about Gojo vs. Sukuna even though that one is already cleared up this chapter too (so I don't see why you're trying to argue that).
At their peaks, 10S is the superior technique this is a fact. Dimensional slashes cut through Infinity like knife to butter, they will cut through Hollow Purple too.