Dooku did flee the battle in Witches of the Mist, Mizukage. He and Ventress did put Oppress down, but he got right back up again as Dooku fled down that hatch.
Even if I think its stupid that Oppress is as good as he is, the fact remains that he did disarm Dooku, choked Dooku and Ventress out and then put both of them on their asses with single swings. Dooku didn't come out of the fight looking like a clear superior.
As for Dooku not beating Anakin with the Force: Dooku just isn't powerful enough to beat him that way. He's used the Force against Anakin repeatedly, but it always does little more than impede him. The gap in power isn't big enough for him to own Anakin in that matter. Barring that one duel where Anakin was shocked repeatedly with electrostaffs, and even then Dooku was breathing hard afterwards despite barely doing anything.