I’ve been doing a lot of research and have talked with reps from all three and done zooms with Med El and AB. That info on AB doesn’t sound current, but of course I’m no expert! I found this link https://www.bioworld.com/articles/501264-sounds-good-advanced-bionics-receives-fda-approval-of-marvel-cochlear-implant-platform?v=preview
The Med El rep said the same to me about AB not being FDA approved and AB indicated that is old info.
The connectivity with the Phonak Marvel is great-hands free phone use like I have now with my Oticons. It would be hard to lose that and it is a strong pull for me toward AB-it connects the CI seamlessly with the hearing aid. No intermediary y device. As others have reassured, sounds like they are all viable options.
Please keep us posted. I did see your graph. Mine is also on my profile. Both ears had always been the same until the rapid decline of my left ear two years ago.