Which is the best step up movie?

Camille (Alyson Stoner) was Tyler's (Channing Tatum) kid sister on Step Up (1).

Moose (Adam Sevani) was the nerdy kid on Step Up 2, and the best friend of Camille on Step Up 3.

Jenny Kiddo (the Asian chick) was also on Step Up 2 & Step Up 3D.

Jason was the graffiti/electronics guy in Step Up 3D and he then dances in The Mob in Step Up 4

I don't see any major story connections :)

sai;)