There are some positive aspects here. I loved the Jadoon, they were an original and good concept. Aspects of New New York were good, thought-provoking and entertaining. The portrayal of old New York was very good and it was a shame there was not more involvement with the characters and their situations in both these places. The problem with the new series is that episodes flash past catering to today's limited attention span and increasing the feeling of superficiality. Every story ends up feeling similar. Speaking of which, will the Doctor (who can purportedly travel anywhere in time and space) ever get to a bona-fide alien planet?! Even the Daleks are getting over-used and less-and-less effective. There are a lot of past monsters and situations getting recycled, (from both previous Doctor Who tv and other formats, but most noticeably from the new series itself). Martha and the Doctor/Martha dynamic are not really that different from Rose. On the whole there is now a real lack of freshness and originality and the story-telling is getting progressively weaker. My favourite season of `new doctor who' is still Christopher Eccleston's, which is so much better than what has followed.
And am I the only one who doesn't like David Tennant? Yes he has at least toned down his over-enthusiastic and overly camp little-boy portrayal but it hasn't disappeared. He's still not the dark and dangerous Doctor he hinted he could be in 'The Christmas Invasion'. I initially thought all the silliness was just going to be post re-generation trauma, and could have lived with that! And why can't he use his native Scottish accent? It seeps through his cockney accent anyway and we've already had a precedent with Sylvester McCoy. Must everyone now talk in an Eastenders accent? (Speaking of which, that scene with Martha's parents was pure Eastenders.)
As a long time fan I still watch each episode but it's not a fantastic experience and I often lose interest.