Hey, I like Rory's character a lot. He's just a normal guy who goes about being dragged through time and space by his fiancee, and his actor does a good job at portraying that. Not only that, but he's also there to break up the romance. The romance around Rose was good, and I liked it because in the end it did work out for everyone (including Mickey). Martha's was just annoying and yes Martha we get you like the Doctor but he doesn't want to get involved, but it's old. I loved Donna because she wasn't really incompetent, but willing to get hands on, and there was no romance plot. It was just two friends going about time. Amy had a small thing for the Doctor, but that was cleared up in Amy's Choice and that was the end of it.
Blink is my favorite episode with Tenant because it shows that he doesn't have to be in the episode for a good episode of Doctor Who. He saved the day without direct influence and shows that even sometimes he needs the help of others rather then the other way around.