I don't like McCain because he has done everything he can to ignore the soldiers left behind in Vietnam. Read "An Enormous Crime."
John Kerry and John McCain were the key members of a Senate committee that investigated the POW/MIA issue, and they found it was likely that POWs were left behind in SE Asia. Here is the report I believe:
http://lcweb2.loc.gov/frd/pow/senate_house/investigation_S.html
His voting record also seems to be consistently anti-military over his time in office.
As for Obama, he has been consistently anti-2nd Amendment for the most part, he wants to create socialized healthcare, he wants to create socialized healthcare for children, he wants to pull America out of Iraq right now which IMO is a bad idea, especially now, he believes global warming is real and I believe he would damage our economy by ratifying Kyoto, or doing something like a carbon cap-and-trade scheme, or something stupid, he would get rid of the Bush tax cuts and raise taxes further which I think is ludicrous, etc...the only "change" Obama wants is from our pockets.
And IMO if people think the economy is "bad" right now, they're going to learn what a truly bad economy is like if Hillary or Obama get in and raise taxes, and strain our economy through higher taxes, bigger government, and also through things like if they try to stop global warming through energy controls.
For example, Hillary suggested a carbon cap-and-trade scheme. This is exactly what Enron had been trying to do up until it collapsed, which was why they lobbied to get carbon dioxide declared as a "pollutant." They also practically begged President Bush to ratify Kyoto. He would not do this because of the damage it would do to our economy. Kyoto and/or a cap-and-trade scheme would damage our economy a good deal, but apparently Hillary doesn't realize any of this since she suggested it.
The media also fails to mention all this it seems.
Hillary also is for bigger government, socialized healthcare, tax raises, and punishing those "evil" "predatory" corporations out there.
And both Obama and Hillary, if they decide to tax corporations more, are only going to cause those corporations to leave America for foregin tax havens.