Ok here are my views - I personally think all three brands of CIs deliver best results and no one CI brand is superior than the other. It is just a matter of personal choice - whether you like the features, the durability and reliability, the post-implantation support, etc. I am a Cochlear Freedom recipient, and I took almost 2 years researching on my options.
1. Cochlear claims it has been in the industry for 20 years - it is very true, and they have more experience in making better cochlear implants. On top of it, it is the most reliable CI, has excellent programming options, good features, etc.
2. Advanced Bionics is another leading CI manufacturer, and it was my first choice. But I changed my mind because it was more "feature-driven" & I had doubts about reliability. Reliability matters for the long term; I certainly dont want to undergo a number of surgeries if my internal device fails for some reason. But overall, I would still prefer AB - excellent support and a great AB community. Since AB isn't your option in NY, lets leave that out.
3. I cant say much about Med-el since I never considered it seriously. I had doubts about ceramic casing, reliability, number of electrodes, programming options, etc. But I have heard from some people, Med-el is very popular in Europe; I still don't get it how people do so well with it despite its drawbacks. Still, I would say it is a CI device and would deliver the same desired results.
I have seen many kids about a year old, hooked on to Cochlear and ABs in US. And Cochlear even manufactures mini speech processors behind the ear, with a Mic Lock and some more features to fasten the CI and prevent it from getting damaged. Another thing, since you are in NY, they have a very reputed medical team I believe and you could possibly ask the surgeon details about the surgery. Coming back to the CI brand, I am more than happy with my Cochlear Freedom & I think it would benefit anyone else. But all three brands will deliver the same desired results - no doubt. We can easily say this brand is better than that, but then it is just based on individual preferences and experiences.