Well... why do you want anyone to "talk you into" something? I say choose the one that you like best and poo poo what everyone else thinks. Now, on the other hand if you have specific questions about an M&P9C on this forum, that would make sense to me.

I don't own either of the other two so I won't comment on them. I do own an M&P9C and the only thing I'd have done different is to buy an M&P40C instead. That way I could convert it to a 9 and have the best of both. The conversion doesn't work the other way from what I understand.

I assume you want extra capacity and that's part of the reason for your choices. Personally, I'm more likely to carry my single-stack 9mm, but I do carry the 9C on occasion.

__________________
M&PC FS BG Shield+ 642 686+