Regarding the Wildcat, I have the sense that the Brewster can actually outperform the F4F. I don't know if Lusche's stats would bear this out, but my impression is that it's something of a monster among early War aircraft.
The Brewster is immensely more popular than the Wildcat. The numbers of 2022: Brewster 5,405 kills and 6,692 deaths. Wildcat 1,025 kills and 1,027 deaths. Against fighters, the Brewster has a k/d of 0.86, the Wildcat 0.81