Alito poll numbers
Current polling on Alito is contradictory and confusing. An ABC/WaPo poll indicates that 54% think the Senate should confirm Alito, while in a Fox News poll, only 35% say they would vote to confirm him, given the opportunity. Unless 19% take the bizarre position that the Senate should confirm Alito even though they wouldn't, these polls contradict each other. I'm at a loss for an explanation of why; the 54% figure is taken from adults, while the 35% figure comes from registered voters, but I'm not sure if that fact alone can account for such a wide discrepancy.
To add to the confusion, in the ABC/WaPo poll, while 61% say they would want Alito to uphold Roe v. Wade, only 43% say that Alito's position on abortion is 'extremely' or 'very' important (though an additional 38% say that it is 'somewhat' important), while in an earlier CNN/USA Today/Gallup poll, 53% said that if Alito would overturn Roe, then the Senate should not confirm him.
Regardless, I think one thing everyone can agree on is that public opinion on Alito is still highly malleable. Who wins this battle could come down to who does the best job of defining Alito in the eyes of the electorate.
A round-up of polls on Alito and the Supreme Court can be found here.