I still think Hayward is the better scorer. PG has just turned into a miraculous shooter this year, small sample size though, that has really elevated his stats. Also, he plays next to 3 wings who can all shoot, so his spacing is way more optimal than anything Hayward ever plays with (especially in the starting lineup) by a large margin.
For example, in the 2 games Rudy has been out in this recent stretch, Hayward is averaging 23 points, 5 rebounds, and 4.5 assist, and that still isnt with good floor spacers, just not having a floor clogger like Rudy in the game. Imagine if he actually played next to two (well above) 40% 3pt shooters in the starting lineup (which could actually happen if Quin played Burke and Burks instead of Hood/Neto).