Hard to say. Kinda just depends on what elements you like/dislike. I personally never really cared for River(might've just been that she wasn't attractive, but I never felt the romantic connection they were supposed to have, idk), and was tepid toward Amy, so I disliked a fair portion of Smith's stint. I enjoyed his take on the doctor, but never felt his doctor had the presence and power of Tenant's. Season 7 gets somewhat frustrating toward the second half just because they bullshit around the overarching plot line in between Moffat episodes, but there's definitely some quality ones in there. All-in-all, I wouldn't say it's worse than season 6.