The cruiser feat(assuming they were legitimate cruisers, which in a Korriban army hanger it's more than likely they are) comes to mind; lifting over a dozen Obelisks easily when an amped Savage(who could blow away ships) can only lift two; ragdolling Obi-Wan, Quinlan Vos and Asajj Ventress; one-shotting Asajj with Lightning that could've killed Quinlan, etc.
For TP, there's the Beast Control on the Krayt Dragon but also his limited success against Obi-Wan on Geonosis with Drain Knowledge. Granted, the electricity made it hard for Obi-Wan to draw on the Force, but given the kind of nexuses he's apparently endured, I'd say it's a good showing for the Count to have that level of success at all.
The other feats have already been mentioned.
OK, so I discovered something interesting. Dooku didn't dominate the mind of a Krayt Dragon, he dominated the mind of a Greater Krayt Dragon. For reference, the white thing on the right(the little red guy is an actual Krayt Dragon):
A massive beast.
I'm about to check the Wildlife Guide of Star Wars to see if I can get dirt on this sucker.
Oh God, this thing can eat Sarlaacs(that is the actual body of the Sarlaac once it's digged out):
http://static1.comicvine.com/uploads/original/11117/111178634/5480917-2687404360-2016-.png
I am not even looking for Dooku wank; I am amazed by the size and strength of this creature.