Let's see, Eve was about 4'11, Kassie DePaiva is much taller, yes, both could sing. Eve was much involved with Jack, so it was just hard to picture her now going after Jack's son, her daughter's boyfriend to boot.
But Kassie DePaiva. is a fantastic actress, got lousy writing, I admit, and just deserved better. There was a vast difference in personality of Eve, to me, but others have their own reasons. I loved that she was coming on the show, just wished she was different character. She still could have been Paige's mother, without being Eve.