Well, I think you're deluding yourself; unless you have 4 separate brake
pedals and a foot for each one, there's no way you can threshhold brake
on each wheel individually, as ABS does for you.

What ABS system does that?

Gee, I thought they all did!
My 96 jeep grand cherokee has wonderful ABS.
My 2000 Hummer has decent ABS.

ABS is general does not work well in grave or sand. A locked wheel
is better.