[cnn-photo-caption image= http://i.l.cnn.net/cnn/2008/POLITICS/03/18/poll.quality/art.obam.hill.gi.jpg caption=" A new poll shows a majority of Americans say Barack Obama will bring about change."](CNN) - While all three presidential candidates are locked in a dead heat in potential matchups, a new CNN/Opinion Research Corporation poll suggests voters see major differences in each of their personal qualities.
When it comes to bringing about change, a majority of Americans - 56 percent - say Sen. Barack Obama will be able to achieve that task; 49 percent say the same for Sen. Hillary Clinton; and 39 percent say that for Sen. John McCain.
Survey respondents also ranked the Illinois senator highest - 65 percent - when asked who would work with both parties to get things done, compared with 56 percent who say McCain would and 52 percent who say Clinton would.
- CNN Ticker Producer Alexander Mooney