Did finally watch this movie over the holidays. And while I wasn't as enamoured of it as the majority of critics seem to be (trending 98% on Rotten Tomatoes to Toy Story 3's 99%), I did find it an enjoyable ride and certainly a huge step above the standard Dreamwidth's animation studios have usually been attaining in general.
The story wasn't groundbreaking and certainly not on a par with Toy Story 3 for making you feel the whole gamut of human emotion (I still consider TS3 the best movie of last year and one of the best movies of all time, animated or not) but the movie was definitely entertaining and endearing. And the animation was also a step above Dreamwork's norm (although the backgrounds and landscapes were so lovingly rendered in exquisite realistic detail than the more stylized central characters occasionally looked at odds with them). It's just a little bit of a shame that the supporting characters weren't so defined and, as seems to be commonplace in Dreamworks flicks, I walked away not actually remembering the names of any of the characters outside of Astrid, Toothless and Hiccup, whereas even with minor characters like Slink or Rex in the Toy Story movies, their names are reiterated enough to stick in the mind. A little thing, I know, but the little things make the difference between a good movie and a great one.
Anyway, good fun and definitely a good choice as a Christmas present for my nephew who was hooked on the whole thing.