An Anakin trained by Dooku would have surely taken a very different path, however. It's reasonable to assume the will of the Force would still have found a way to bring Anakin and Padmé together; perhaps Anakin would have been the assassin sent to kill Padmé shortly before the beginning ...
Ventress vows to take revenge and enlists the aid of the Nightsisters of Dathomir, a group of mystical dark side witches led by the mysterious Mother Talzin. Disguised as Jedi, the Nightsisters attempt to have Dooku killed.