There's a great FortNine video showing the pros and cons. The very short of it is that the perfect rider can stop faster without ABS but ABS + good technique can achieve very similar results while drastically reducing the consequences of panic braking.
This isn't mentioned in the video, but ABS also enables more aggressive use of linked brake systems, which also improve worst-case safety when a rider panics and uses only one brake or the wrong brake.
This isn't mentioned in the video, but ABS also enables more aggressive use of linked brake systems, which also improve worst-case safety when a rider panics and uses only one brake or the wrong brake.
https://www.youtube.com/watch?v=sDbWZiaUeDY