I liked Matt Smith's version of the Doctor (unfortunately coming off Tennant he felt kind of similar in some ways and tamer in others...but I did like the excitement he had!). I loved Amy (as you say, she was 'firey', and I liked how she played with the 'weird' that's thrown at them). I even liked Rory a bit as a sort-of good-hearted punching bag.
But I agree, I think the plots during the Matt Smith era were a bit heavy and it got kind of annoying. It never really sat right with me.
I am looking forward to Capaldi if for nothing more than a fresh slate. Daresay, it's kind of nice he's a little less of a pretty boy too (not that it's ever a bad thing, but just to change things up).