Giuliani 47%, Clinton 43%
Giuliani 45%, Edwards 46%
Giuliani 46%, Obama 42%
McCain 44%, Clinton 45%
McCain 40%, Edwards 48%
McCain 45%, Obama 44%
Romney 41%, Clinton 47%
Romney 37%, Edwards 51%
Romney 43%, Obama 47%
Thompson 46%, Clinton 43%
Thompson 43%, Edwards 47%
Thompson 45%, Obama 44%
http://www.worklifeexpress.com/PPP/pdf/surveys/PPP_Release_062107.pdf
Those numbers will likely see movement in the GOP direction as November 2008 draws closer. Hillary has a significant name recognition advantage over Romney and Thompson.
