I hesitated on picking the 4th option in the poll
I just bought that pioneer (btw, the first 2 sites I checked were cheaper: 99$ cdn at oemexpress, 103$ at ncix... most places will price match too) and it's working just as well as my last pioneer worked. No complaints whatsoever.
I haven't really checked this LG model. LG's quality/reliability seems to vary a lot on a per model basis, and since the pioneer drive was cheaper and that I already know and trust the brand...
If speed isn't a great issue, then the liteon 812s makes for a cheap 75$ rpc1 832s too (after reflashing firmware).