The real problem with Dooku...
...is that all his attacks take up too much damned time. You have a 5 minute timer in PvP and he alone can eat up 1/3 of it with all his counterattacks and bonus attacks. In general counterattacks ...
Forum Discussion
I am finding the best thing to do with him, ironically enough, is immediately attack him with my own Dooku. There's a decent chance of a stun, and then I can lay down a decent amount of damage on him without counters. Unfortunately this doesn't always work.
