"Best mainline game for someone who’s never played Pokémon?"

My wife plays video games and has asked me about Pokémon since she sees me play it from time-to-time. She has never played a Pokémon game in her life and she wants to give it a shot. So I was thinking, with 8 generations of games out, what generation of games would be best to start her out on? Any input would be much appreciated! via /r/pokemon https://ift.tt/2RVhoej