Which Nintendo IP had the most impressive leap to HD?

[HoloDust]

archer9234 said:
I'm gonna say Pikmin. Everything else is pretty close to what was before. Just add reflections and sharpness here and there.

I think you're oversimplifying it a bit, but also I'm not sure if people skipped the "most impressive LEAP" part, since I find Pikmin to be exactly that.