I think a gloomy Doctor can work, Tom did it well enough during season 18 and Eccleston's darker moments were excellent but like everything he does that's not in some way "manic" Tennant never sounds remotely natural and from what I gather about the storyline Adelaide killed herself so she didn't have to listen to him being emo anymore
Laugh. No, I agree totally. Darker is fine and definitely can work and has worked in the past successfully. Tom's grimness and Eccleston's Doctors hauntedness and horror of what he's lived through/did worked absolutely brilliantly.
The difference is Tennants Doc 10, at this point is just, is just feeling sorry for himself which for me has gone on long enough and on him it comes across all Emo like he needs to listen to the Smiths, wear black and some man-scara by now.
I don't mean to post just to be mean to someone who is several peoples favorite Doc, and I apologize cause I do enjoy being a smart-arse.
Here's a thought that kind of sticks with me though. Not that there's anything that we can really do about Eccleston leaving cause it was his choice and that's that, but, for me, Rose's romance with Tennant never worked at all because she was Doc 9's romance, and she just didn't click the same with Tennant for me, PLUS, I don't really see regeneration carrying feelings over like that from one Doctor to another. It didn't feel right. One Doctors baggage is that Doctors baggage. Friends are still friends, but it's like relationships need to be re-felt out.
Regenerations bring very different incarnations/people. There really isn't a basis for it in the past since storylines like this weren't really done before, but in the same vein- Tennants being haunted by his actions in the Time-War one regeneration on since it happened also seems odder in the big picture to me story wise, as it's from events that happened to the last Doctor before him, or technically, two Doctors before him (though Doc 8's dying left 9 to be the person to feel and deal with it).
I can see, to me, how in the big picture, if this all happened to the same Doctor, Eccleston- the entire Rose storyline and his fall into self pity/depression, it might feel more cohesive of a storyline to me. But I think I would still hate Rose from S2 onward though (laugh)!
I probably wrote that confusing but I'm tired of editing (laugh).