Ask any professional poster, this far out head to head match ups are near useless, but what is a little more telling is:
A's approval/disapproval vs. B's approval/disapproval...the polls always converge on that anyway.
Totally concur, but what's interesting about this election cycle is that everyone has net negative approval ratings: Congress, Congressional Republicans, Congressional Democrats, Obama, and the Republican Presidential candidates.
Admittedly, head-to-heads are a lousy way of augmenting this information.
To clarify, the presidential candidates don't have "approval ratings". They have "favorability ratings". "Job approval" has to do with how voters think someone is doing at their job. Romney and most of the others don't have jobs, so they don't have job approval ratings.
