I went with FB. The tubs seem to be more durable than Sterilite and some other tubs and I like the built in water bowl.
As for semi clear tubs, I don't think the semi clear allows you to see your snakes well enough to reduce opening and closing. If you really want to look at your snake, your going to have to open the tub. I think the dark tubs add to the snakes sense of security and reduces stress.