I wouldn't say Rose is the best person for the Doctor. But she did fit very well with him. And I would disagree that Martha didn't like him, I think she did but she recognized he had flaws. I do wish Martha had a stronger storyline and I'm definitely NOT a fan of the unrequited love stuff but she was so awesome that it made up for it. I just wish she had gotten a chance to be him when he wasn't so sad about Rose which is just bad timing. I don't think they clicked as well though so a different timing wouldn't necessary change that.

I don't see Rose as the be all, end all of specialness as right after a person *dies* to you, of course you're going to feel horrible about it and mention them a lot. Not to minimize their relationship but that's how I see it. And as I disagree with the romantic/sexual implications as much that colors my view definitely.