This list from the National Retail Federation has the top 10 toys for both boys and girls.

Top toys for boys:

1.LEGO
2.Video Games
3.Hot Wheels
4.Cars (generic)
5.Xbox 360
6.Nintendo Wii U
7.Transformers
8.Remote Controlled Vehicles
9.Furby
10.Trucks (generic)

Top toys for girls:

1.Barbie
2.Dolls (generic)
3.Furby
4.Monster High Dolls
5.Disney Princess
6.American Girl
7.Video Games
8.Dora the Explorer
9.Apple iPad
10.Apparel

Happy shopping -Mark