It seems like the Catholic vote is more Democratic now than it was, say, 15 or 20 years ago. Maybe it's because Catholics are a little more urban than Southern-style evangelicals.
Most Hispanics are Catholic, as are most Filipino-Americans and many Vietnamese-Americans. But even among white non-Hispanic Catholics one finds more formal education than among Southern-style evangelicals.
Anti-intellectualism is a cornerstone of life among many, if not most evangelicals.The Catholic Church is not anti-intellectual.