pokoko on 21 December 2013
Pokemon and Digimon both came out at around the same time and they were both clearly inspired by previous franchises. Neither one invented the "evolving companion" mechanic, so I don't think it much matters.
The basis of Pokemon is the game-play. The basis of Digimon is the story.
On topic, the environments look really good. I need to know more about it, though. However, if Patamon is involved, then it's a must-by for me. Patamon and his evolutions made the anime for me.
