Just finished Black for the first time. Those of you who haven't completed either game yet, I can safely say you're in for one hell of an ending. They ramped up the "epic" factor so much after the 7th Gym, and it just kept getting more and more awesome right up till the final line of the game.
Brilliant music over the credits too
This Generation has definitely introduced a more grown-up, story-driven theme to Pokemon. I for one really like it.