ABS vai ei ABS?

Recently I met with an accident and ended up breaking my leg. But just before the accident took place, I applied the front brakes really hard but it felt as if the brakes never worked. Just the bike shaked up a lot and I ended up in rear ending a two wheeler… Some people call it the magic of ABS. I have noticed many times that the non ABS bikes have better stopping power than the bikes equipped with ABS. Is it true? And why stunt riders prefer non ABS bikes?