I too had only bad experiences with LG drives so I’ll exclude both from my choice list.
If you can, I suggest to get both the liteon and the samsung
If you have to get only one, my choice will be the liteon, because is the only drive that can do the quality test.
If you are not interested in quality tests, then go with the samsung
What do you mean exactly with “read quality”? If the disc is readable, then quality is good anyway. Maybe you are referring to the reading speed?