Before this marathon, the only main Pokemon game I had never played at all. I was worried that I might get tired of wandering around Unova after two straight games, but this game shows how interesting of a setting it is. There's less going on in the narrative as the first game, but it visits its repercussions often. The increased diversity in Pokemon gives a wealth of options to use in a playthrough, and the amount of post-game content rivals even that of HeartGold. I think this might be my favorite Pokemon yet.
My team for this playthrough: Samurott, Magnezone, Flygon, Heracross, Zoroark, and Volcarona