Baby Name Poll Results

The best of your three is Abbie, but if you use Abbie it might be best to make it a nickname for Abigail because Abbie might not age well.
Emily would be the better spelling because Emilee looks sloppy and un-classy, IMHO. I know Emily might look boring, but think of it this way: It’s still going to be pronounced Emily and her name will get spelled Emily 99.9% of the time. Why give her a life full of headaches by having to constantly spell her name and correct people?
Imani will get butchered constantly. Nobody will be able to spell it or pronounce it. Another headache waiting to happen.

None of these..Abbie if your going to pick one

Emilee got my vote but I would much prefer Emily or at least Emilie if you really want to go with a less common spelling.