Just a taste from a great article.
McCain: The average taxpayer in every income group would see a lower tax bill, but high-income taxpayers would benefit more than everyone else.
Obama: High-income taxpayers would pay more in taxes, while everyone else's tax bill would be reduced. Those who benefit the most - in terms of reducing their taxes as a percentage of after-tax income - are in the lowest income groups.
http://money.cnn.com/2008/06/11/news...x.htm?from=rss