Battery impact guns
https://m.youtube.com/c/TorqueTestChannel
If you actually want to compare the tools on the same scale since a lot of it is marketing.
I personally rarely use the impact when I wouldn't be putting air in the tires or anything else so I have never bought an electric one over 1/4". My uncle has the big milwaukee and it has a lot of power but its also huge and doesn't fit in a lot of places where you might want it to.
I have the IR 2235TiMAX air and that thing is kind of wild when you turn the air pressure up. The other air tool that's amazing is the compact astro 3/8 gun that fits in a very small space.