Which Device?

[Harsh]

First post here. I have done a tremendous amount of reading and there is a lot of info.

I have had pain for about 20 years and I am finally getting the military to do something about it. I have herniations at C5-C6 and C6-C7 and a bulge at C4-C5. I spoke with the surgeon today and he has given me the option of two devices to install for a two level. The Mobi-C or ProDisc-C. I have seen pictures and the models but really don't know which one to choose or what factors to consider to aid in my decision. Can anyone provide some factors to consider in choosing one over the other?