I´m really not a Liteon-Fan, but the Lite is definitive the better and faster drive (except with CD-RW, max. Speed 24x). If you don´t care about a noisy drive, get the Lite.
Benq DW 1640, LG GH-20N, Pioneer BDR-208
Crucial M4, Sandisk SSD, Plextor M5S, Sandisk Ultra Plus, OCZ Petrol 256GB