Crosstabs are only available for "premium members", so we don't have that data. Here's what Rasmussen had to say:
Now trailing Democrat Bob Casey by fifteen percentage points (52% to 37%), Santorum has gained a few points since last month. Of course, gaining a few points after lagging by twenty-three points is hardly an accomplishment for an incumbent to brag about. The overall trend remains very unhappy for Santorum: he has reached a 40% level of support just once in our last eight polls of the race. Casey has topped 50% in all but one of those polls. . . .
Senator Santorum is viewed favorably by 46% of likely Pennsylvania voters, unfavorably by 48%. Casey is viewed favorably by 55%, unfavorably by 36%. Santorum is viewed "very" unfavorably by 28%, Casey by 13%.
A lopsided plurality of voters in the Keystone State would prefer to see a Democrat in the Oval Office in 2009. Voters here tend to look more favorably on the Democratic prospects we asked about than voters have in other states.
Still, the two Republican frontrunners still enjoy slightly higher favorables than the Democrat’s frontrunners. Hillary Clinton is viewed favorably by 53%, Al Gore by 57%, John McCain by 59%, Rudy Giuliani by 64%. McCain and Giuliani are viewed "very" unfavorably by many fewer respondents than Clinton and Gore are.
Numbers like these tend to make one forget just how long we have to go until November.
Here's a crayon, kids, draw yer own conclusions.