ABS works differently for different cars and tire types, etc...
If you drive in the snow step one is to get snow tires. I drove my NA with no ABS and snow tires with zero problems. I NEVER lost traction while braking, only when I would try to give it too much gas would I break traction. Snow tires are well worth it, especially if you have a non-piece-of-shit Supra.
Beyond snow tires, the ABS system probably won't work as well as perfect threshold braking. You should aim to brake just hard enough so the ABS doesn't kick in. The ABS system isn't designed to be used at every stoplight in the snow, but rather in rare panic situations where you have to react very quickly and most drivers (even good ones) will lock up the brakes and lose steering. Once you lose steering in those instant panic situations you're at a huge disadvantage. That's the beauty of ABS. You can allow your natural reaction of "HOLY SHIT STOP!!!!!!!!!!!!!!" [slams on brakes] and have a better chance of not hitting whatever you're avoiding.
Naturally there are those ass-hats that think they are "above" ABS and can control all 3 channels of the system better with ONE brake pedal, even in panic situations. I wouldn't listen to these fools...