It's not called bey bey it's actually called beyblade. :)
Robin Harris
It depends. the best beys you can buy right out of the package are earth eagle, burn phoenix, earth Virgo, thermal Pisces, flame libra, ect. If your building I would recommend something like burn...
burn fireblaze,evil gemios, and earth eagle the worst is rock Capricorn if you want a great bey go to toys r us and get midnight bull
argos