I could've sworn along time back that River Song said the the 11th Doctor wasnt even her "Doctor" If so, its got to be Capaldi , and if so, is it likely she would be a full time companion to whoever "Her" Doctor is?

She said Tennant wasn't "her Doctor", don;t recall her ever saying the same about Smith.

After all the stuff she went through with Smith's Doctor that would just plain daft. He was the Doctor at her birth, her last regeneration and their "marriage". Capaldi, if they meet, will have the same impact on her as Tennant's Doctor - as one of the others, but not specifically her Doctor.

I don't think she considers any one of the doctors "hers" they're all one in the same in her eyes. I don't think she treated 10 any different from 11, and if she did it was because of David's defensive personality when they met and the fact that he didn't know her then.

She said 10 wasn't her doctor, but the only other detail about her in relation to other doctor's is that it seems to have been implied that she met more than just tennant and smith.

Excuse me if I'm wrong but 2 things)

1) I'm pretty sure River said that 10's Doctor was young, implying her doctor was older so it couldn't be 11

2) That they lived together at some point which has never been shown or hinted at with 11.

So Rivers song is unfinished, no?

10 was younger than 11. Tennant might be older than Smith, but River was clearly commenting beyond his physical appearance. Its the same as when, in the 50th, Clara comments that Hurt's eyes are so much younger. He's clearly older than Matt, but Clara can see the difference in his eyes. I think that was the same for River when she met 10.

I don't remember her ever saying she lived with the Doctor, but even if she did, there is so many gaps in 11's life that we never saw, he could well have lived with her at some unseen point.