But I'd agree with her and you should get White 2, cos Zekrom is in White and you can get Reshiram in White 2.
I played Black originally (which had Reshiram) and I plan on getting Black 2 (which has Zekrom) so that way, I'm not stuck with the same Legendary dragon I had.
So yes, you should get White 2 cos it continues from White.
So if I get White 2, I'll have both Legendaries, but if I get Black 2, I'll only have 1? Is that the message you're implying? It really doesn't matter to me either way, I was just curious about that Black City place. White Forest is kinda boring :L