If I had to play just ONE Pokemon game, which one should it be?

[CourageTCD]

Pokémon Emerald is the game you should play. HearGold/SoulSilver are great games, but they are sequels to FireRed/LeafGreen. Not that they are super connected, but still, you would enjoy HeartGold/SoulSilver more if you had played FireRed/LeafGreen before