Adsense doesn't really pay, because it's based on actual clicks, which depending on your article's keyword choices, may not pay much. Whereas Hubpages Ad Program pays by # of impressions, which is basically each time someone lands on your page, whether they click on the ad or not.
You can optimise the Adsense value if you look at the CPC column while you're using the Google Keyword Tool. This is what advertisers are currently paying for clicks on their Adsense ads. If this is important to you, you may want to adjust your keyword choices for your hub article's title, etc. to take advantage of higher CPC rates.