The best indication for me is to compare the two candidates' positions on short term solutions. You have quoted Obama's. Here is McCain's.
http://www.johnmccain.com/Informing/Issu…
As you can see, rather than a full analysis and discussion of McCain's plans, all we get are two paragraphs which do not even mention the short term solutions, just discussions about how he wants to produce energy independence by the year 2025.
I agree with your analysis on the windfall profits money grab, but I don't agree with the SPR analysis. If the oil were released from the reserve, it would drop prices now, but the reserve is much larger than you think, and by the time it were even close to being exhausted, we would have new sources, either of oil or alternative energy sources with which to replace it.
But I prefer the candidate who actually spells things out point by point to one who just gives us a sketch that is supposed to make us feel better.
Edit: Kev's analysis only works if there is a complete cessation of all imports. The SPR estimates that in that case at 4.4 million drawdown per day, the supply would be exhausted in 113 days. With the lower amount required to simply supplement the gasoline inventories enough to drop the price, it would last much longer than that.