This analysis of this Pew poll doesn’t really find much difference in support for the various candidates when you slice and dice the respondents along religious lines. The relevant Democratic subgroups all favor HRC; their Republican counterparts all favor Giuliani. Perhaps most significant is that Catholic Republicans go for RG by the biggest margins and that evangelical Republicans are less obnoxed by him than by any of the other leading contenders.

Here’s something from the poll:

Fred Thompson attracts strong potential support from men and older people, as well as from conservatives. A profile of Republican and Republican-leaning voters who say there is a good chance they will vote for Thompson shows that 70% are male and 65% are age 50 or older. Nearly three-quarters of those who say there is a good chance they would vote for Thompson are self-described conservatives (74%).

Giuliani’s potential base of support is younger than Thompson’s and less heavily male. More than half of Republican and Republican-leaning voters who would strongly consider voting for Giuliani are under age 50 (53%). Roughly six-in-ten are conservatives (61%). Notably, just 39% of possible Giuliani supporters attend church at least once a week; by contrast, half or more of those who say there is a good chance they would vote for the other leading GOP candidates attend church at least weekly.

If you want to chew over some more numbers,
here’s the topline questionnaire.