I've played Pokemon X multiple times, and while the story and 3D models may leave a bit to be desired, I think the region and new Pokemon are some of the best in the series.

I've yet to replay this like I have Pokemon White, but from what I can recall, most of the differences between this and the original generally improve on it's predecessor. I especially love that this is a continuation on the story or Pokemon White.

The first Pokemon game I ever played. Replayed it again recently, and it still holds up as one of my all time favorites.