Yeah, I didn't really care for the opening credits. I really, really like Clara, but I also think she's insanely hot and I'm a guy, so... really, it's quite biased. I hated Rose and Donna more than anybody, so really, I won't take Clara for granted. I can see where one might be a bit apprehensive about her, seeing as she took the regeneration differently than the past few companions would have. Or she's just the first to see him regenerate who wasn't Rose... Which makes a lot of difference.
I loved Eccleston, but he didn't have but one season, so... Really, there's only so much I can say about him. Gotta say, I loved the way he said "Fantastic!" But he didn't have as much development.
I really like that Capaldi is absolutely rocking that Scottish accent. XD "Why do you all sound different?! Stop talking that way!" "We aren't talking any differently..." "Yes you are!" XD My god, so many good lines. I like Clara, but I think she's only got one season left in her, maybe two. I'm curious to see who Capaldi will have after her. I think a really good story for Clara, which none of the companions have had, would be falling in love with somebody from a different time, and choosing to stay there... or something. Dunno. XD This last episode was the first one that I watched with the rest of the world after finally getting all caught up. Still, it took a few episodes for me to get used to Tennant after he came on, so I'm finally used to the regen. Maybe I WANT to like Capaldi, so I do. XD I dunno. I thought it was neat the way they gave us one last goodbye from Eleven without forcing it. I was wondering where he had been when Clara first went into the TARDIS on Trensilor.
As a side note, I don't think anybody wanted Eccleston to go either... Nine was an excellent Doctor and I'd have loved to see him grow and change the way the others have. But didn't Eccleston leave of his own choice? He didn't even make an appearance in Day of the Doctor - that was clearly a pre-recorded scene they pulled from an early episode of the new series. I mean, they only used like... one. XD He couldn't appear for one scene to be shot? I don't really know his story, so I don't blame him, it's just that he could have done so much more and didn't. /: But my god did I hate Rose more than any other companion. Even more than early Donna (Doctor-Donna was kind of a neat idea), which is saying a lot. XD