I will go for quality. Do your keyword research, read up on the recommendations for a quality hub and your hubs can do very well.
I would also suggest to consider quantity. Many hubs, especially in subject areas that you are familiar with, can be put up within an hour or so, and I would suggest to go ahead and put them up. They don't take up much of your time, would generate some income as well, and if you are lucky, you might accidentally hit a winner.