Whether or not on average that is true on average, here you can see results that in 2012 those with only high-school/GED favored Obama in higher numbers than those with a bachelor's degree:
http://blogs.payscale.com/salary_report_kris_cowan/2012/10/e...
I understand that "let's call it even" implies average (50/50), but my point was that there are enough uneducated voters from both sides to call it a draw, imo.