I like how Heart Gold has the second region, but is this one as good as it? Trying to figure out which to play through --- Yeah well I dont do maths but they're still different shapes when looking at them. I dont care about your stupid mathematical jargon.
It's much better. Much faster, and despite the lack of a second region, there's better endgame content (you can battle old gym leaders/champions in the pokemon world tournament, for example) --- Haiii Guise
BW2 are better, being faster-paced and with a selection of Pokemon from all regions. Plus, if postgame content is especially important to you, this game will deliver. BW2 not only have more places for you to explore, but you can catch legendaries from different games. You can also make Pokemon movies (more interesting than it sounds) and you can battle every Gym Leader and Champion (including Red) from every main game.