The Lite-on is very tolerable of skips and scratches and very good at playing backed up protected CD's. The ASUS I can't comment too much on other than what I read here but it too is a close contender.
However, I have read from various sources (forums here and cdmediaworld.com) that the best optical drive for reading scratches and glitches on a CD is a Plextor. It recovers best if say a music cd is all scratched up, better than the other two.
So consider your specific needs and I would suggest any of the above 3 mentioned.