I haven't seen the Smith scene for ages, but the difference for me is that with Ecclestone's scene, it felt like the Doctor saying it, not Ecclestone. With Smith, it just felt like it was him saying it, not the Doctor. Or basically, what Rosie said
So when Smith does it, it's crap, but when it's Eccleston it's okay. I know the Nine quote was in character, but you referred to it out of character. That's just me being nitpicky
Hmmm What annoyed me about them was their 'secret' was discovered in like their first episode? Or second? As Jimmy said, it would have been better I think if their mystery was stretched out over a series or two. Another great baddie idea from Moffat, though.
The exception to that is The Silence. They are truly brilliant.
I basically disagree with everything you said. As Tom said, there have been some good episodes, and moments in the first three Moffat series, but I just feel that RTD's era was much deeper and had better idea management. The Doctor felt more like what the Doctor should be and RTD's characterisation was miles better than Moffat's (though that was much better this series). I appreciate that Moffat had a difficult job when he took over. I prefer RTD's way of doing things, but at the same time I understand that Moffat had to try and do something different cos he would have been criticised otherwise.
His era is far from perfect, no era is. I just feel that it's stronger than Tennant's. There are too many moments in Ten's era that I find questionable and I actually feel like under Moffat the show has more depth and less flash, which is very welcome. I guess my point is that 11/Moffat just feels more like Doctor Who than RTD's era did. More imaginative and adventurous.
I can't speak towards the Americanization of the show, because I'm an American myself. I'm just saying what I think as someone who's watched every season of the show's long history, and Matt Smith/Moffat's era just feels more like Doctor Who to me. Especially his first and last series.
I'll totally agree that series 6 is super imperfect, but I think it's ambition should at least be applauded.
As for Smith, whatever you say about him and his Doctor, the show's popularity skyrocketed during his tenure; he (and Moffat) have to take some credit for that.