I go with cool G5. The recently released Samsung SH-S203 (SATA) is adjudged best by Digit and finds a place in Didgital Tools A-list.Reviews by other magazines are also favourable. I shall be buying one tom.
As regards Liteon, which was always my favourite, the recent crop has been too noisy and many have compared it to a speeding truck or vrooming mixie. My personal experience also goes with it.So I have decided to change my allegiance.

Sony, I believe is mostly rebadged Liteon. I wouldn't take a risk.