I've been binging on Glee since before Xmas.
As far as Downton goes, I thought that Series 6 was better than either Series 4 or 5, but was disappointed overall. I was especially disappointed by the final episode.
I agree, the end was anti-climatic, but that's an issue that I've had with Downton Abbey all along, there were quite a few storylines that just ended abruptly in a very simple and non-climatic premise without further consequences and people just moved on. I liked the first few seasons but once I realized that it's all just a silly soap opera on a grand scale it lost a lot of its appeal. Maggie Smith did a good job with keeping it somewhat interesting.
Next shows on my list are Daredevil, Oz, Justified.