I don't know what most Hubbers do, but I run both. If I could only run one, it would be HPads, as the returns are about 10x greater than for Adsense.
Since adding HPads at the beginning of September, my Adsense earnings have been half what they were, or less. But clearly, I'm further ahead than I would have been. I don't know what would happen if I were to drop Adsense; perhaps the increase in HPads revenue would make it worthwhile, perhaps not.