Well, I don't have any experiences with LG drives, but my Liteon has been working perfectly since day one.
On a sidenote, I remember reading a comparison between a bunch of drives, don't remember if there was any LG there, but anyway, the reviewer did note that the Plextor and Liteon did make a bit more noise, and attributed some of the noises to the fact that LG and Plextor both use alot of metallic components, such as gears and such, which makes more noise, but also makes the drive more durable.