For me, it's rather quite irrelevant which sequel to get. I may have bought White1 first, but I eventually got Black1, as well. When I pre-ordered BW2, I got both at the same time, primarily so I could get all four Regi's, but also so I could see things from both gender's POV's. The Yancy/Curtis trades, in particular, made me glad I got Black2 and made a female char.