Polls are always important when they support your view. Otherwise not so much. Hank would post a poll done by Forrest Gump if it suited his view.

In this case the ABC poll is supported by several other well respected pollsters. If I want the most accurate polling possible I check out Real Clear Politics.

RCP summary of polls shows that the ABC poll was in agreement with five other pollsters.

http://www.realclearpolitics.com/epolls/2012/president/us/general_election_romney_vs_obama-1171.html