To me, the more movements and interactivity, the better. For that reason, the GOT dragon looks AWESOME!!
HOWEVER...
For that same reason, Smaug looks AWESOME too.
As someone who loves audio-animatronics and dabbles in it as a hobby, seeing that the GOT dragon will have multiple articulations/actions gives me that warm fuzzy feeling. I will play a million games just to make that damn dragon move.
Conversely, Smaug, while not being a complete representation of a whole dragon looks to have more intricate movements and precise audio sync, which to any animatronic lover is something you just can't wait to see and would likely never tire of. I know I wouldn't.
The two approaches are as different as two animated dragons could be. I'm personally just super psyched to see both of them coming soon. Some people seem to harbor personal grudges for whatever reason, but outside of that I think we can all agree that if you appreciate animatronic dragons, your day has come!