I don't know and I am afraid I'll jinx something.
Another con for Crystal is that people figure she will now succeed regardless which is true. She already had a career and talks about her gigs at age 13. The same can't be said of Lee.
Nevertheless, I think Crystal could win now that she has a "platform", saying she needs lots of money to give to charities and start her diabetes foundation. ( People will forget that she said the other night that the only reason she is there is because of her son.) She has now (recently) successfully 'softened" her edges, both on the show and in interviews. Pretty brilliant strategy.
Rather than talent, voice preference, and demographics, I think in the end it will come down to who people most relate to vicariously.
I think more people's lives will have been somehow touched by single motherhood and/or diabetes, than by paint salesmen needing a break.