Well, judging from the review on this page for the AOpen drive, I would not recommend purchasing that one. And the Sony drive is just a LiteON drive with a hacked firmware and a nice looking sticker that says Sony on it, so that already rules out two for you
Between the LiteON and the Samsung I would DEFFINATLY choose the LiteON. It's a faster drive (The LiteON is one of the fastest 52x drives on the market!) and it is very compatible with various types of media ESPECIALLY Taiyo Yuden
You can also download testing software such as K-Probe and/or CD-Doctor which will allow you to test the quality of the your backups, so that you know if your data is secure or not.
on a personal note, I've been using a LiteON for about a year now (the 40125S model, overclocked to a 48125W), and it has served me very well, and produced at least 800 stable burns during its time with me.
but that's just my opinion