[Opinions] Re: Elspeth and Imogen
I love them both. Though I think you should go with Imogen because you and your husband prefer it and it would be your daughter not their's. Imogen Elspeth would be a very nice combo in my opinion, although its not I your list, I think it might satisfy everybody.
IMogen Alice is lovely, and I definitely see it as a good choice. For Elspeth I would pick Anne for the middle name, because the -eth and -iss sounds clash.