The best dragon attacks, IMO, are based on discrete 3-D structures. Yesterday I went to Autumnwatch Tower and defeated an Ice Dragon by ducking in and out of the stone tower as it blasted the sides with frost, then kept walking up the mountain slope and reached Arcwind. Started fighting a Draugr Deathlord, felt my controller start shaking, looked up, and saw 10 Draugr marching on me with another dragon about to land. I did what any courageous Dragonborn would do and ran like a little bitch away to heal up. Then I came back the other side, and started pegging the dragon with arrows as it attacked another Draugr Lord deep in the Arcwind basin. These situations require some tactics and strategy in how they're approached, and feel really fresh.
On the tundra however, it's much less impressive because the melee combat is primarily bash and slash. After a few days, I was all on board for Skyrim dethroning Zelda games in the "wander around on a horse doing stuff" category, but Nintendo's made a late run as I've started to appreciate more of the subtle gameplay polish they put into their titles. Things as simple as "point out where your horse/companions are on the map", or the Z-targeting system. Ancient as it is, Twilight Princess's combination of Z targeting and special "A" button events helped Link feel far more dynamic and active than I do as my Breton.
All said, however, I'm 80 hours in and Level 30+. It's almost impossible to imagine re-starting with another character since there's been such an extraordinary amount to do. I'd give Skyrim....uh, probably a 3 or 4 out of 5 right now, depending on how much f'ing lag my PS3 spits out. I really, really love the technical world Bethesda spawned(*), but there's a nagging urge for a stronger narrative voice (which would probably tie into giving you 2 or 3 discrete companions that could accompany you and give relevant dialogue, instead of the mute anonymous followers).
*altitude. In terms of accepting the internal reality of the world, I'm a sucker for elements that tie it all together; usually manifested as mountains. In Majora's Mask, it was seeing the moon slowly descend from multiple angles around Termina.
