Generally ABS is better except when you are trying to show off by doing spins and other stuff like that (generally a bad idea) or unless you are a very skilled driver and can modulate a brake pedal like an AM transmitter. I used to drive my dad's '78 GMC 3/4 ton pickup with very lockable rear brakes, when some moron pulls out in front of you (because he didn't see something big, brown, and chrome coming at them) if you don't know how to work the pedal or atleast know when they locked up on you it becomes a good way to munch some metal.
When it was sold after I had been driving it frequently for 3 years and never fully mastered them (to my satisfaction), although it did make driving other cars a piece of cake.