I absolutely hated River Song and could not watch any episodes she was in. She was too much of a Mary Sue character for my tastes, and really the only time I could tolerate her was the last episode she was in where she just seemed much more 'human'.
I like the new doctor and hope that we can move away from the continued 'companion besotted with the doctor' storylines because he is older. I just really don't like the episodes he has been in thus far. The latest one with Robin Hood was better, but the first two were really bad in my opinion.