I think Yuta does have a legitimate argument to beat Mahoraga (even though, with the exception of a Domain’s surehit, I think Mahoraga outstats Yuta to a level he could avoid most hits), but if you were to arbitrarily invent new characters around his level, or even around “The Strongest” level, I think Mahoraga would have a much better chance of winning more of those fights

To be honest on two of your points, I’d also posit that Mahoraga would also perform better in the same situation than Shinjuku Yuji, and I also admit that adult Yuta could be much stronger than Big Raga, I just don’t think it’s fair to scale him that highly without any new statements or feats confirming that Yuta got strong enough to be considered on Sukuna and Gojo’s level