I was sent the link for this neat website that has a quiz on which candidate most closely represents the views on issues you hold based on a series of 22 multiple-choice questions.
Of course any of these kinds of things are to be taken with a grain of salt, but it was fun to see the outcome.
SelectSmart indicated that Santorum was closest to me with an 82% compatibility. He was followed by Gingrich and then Romney who were in the high 70's. I was surprised that Perry was a few candidates down the list.
It's a fun diversion, if you've got a few minutes to kill.
http://selectsmart.com/president/