Sadly, its all we have (the bipartisan system). The difference between the Obama shit and the McCain/Palin stuff here IMO is qualitative. The stuff going after Obama is comprised of so many unsubstantiated claims that I've become disgusted with the entire Republican party this year.
I always considered myself a moderate, certainly a fiscal conservative, but I can't align myself with the people McCain surrounds himself with. I think he'd be a fine president, but in my mind he made the mistake of hiring goons like Steve Schmidt, one of Karl Rove's former aides who helped Bush's 04 campaign of "outrage". He's contributed nothing but negativity to the campaign trail, which is something I consider deplorable and disgusting. While I agree Obama is no saint, his attack ads have consistently gone after McCain's policy as well as his character (with the exception of the Keating Five thing, which is retaliation for the Bill Ayers thing). But the lies and deceit of Palin have hurt too. In the VP debate, one moment she talked about how she fought tooth and nail to keep the oil companies from gaining power in Alaska, then 20 minutes later she said we should use Alaskan oil resources to reduce dependence on foreign oil!
When I go to mark Obama on my ballot, at least I know the kind of person I'm voting for, for better or worse. I just don't know about McCain.
After the 2nd debate, one thing I read really solidified it for me; one of the talking heads described McCain as "angry and aggressive" while Obama looked "presidential". Never heard a more accurate description of that debate.