For the bulk of my cooking, I use the Filippo Berio, because they have it at Kroger, it's often on sale, and isn't stored in plastic(which is nasty) or glass(which is expensive).
Also, light is not good for oil, so I usually steer away from clear bottles especially. Of course, if you use the oil fast enough, it doesn't matter that much, but it is always a good idea to take the bottles from the back of the shelf at the store. You never know how long the oil has been sitting there.
There is a cult of ignorance in the United States...nurtured by the false notion that democracy means that “my ignorance is just as good as your knowledge.” -- Isaac Asimov