Originally Posted by
dkyle
Stunning Blow: Absolutely. You should be able to hit useful DCs on this. TWF actually helps, since they'll need to save twice 80% of the time when you activate this.
Imp. Trip: Meh. If you're already taking Combat Expertise (because you want an AC-tanking mode), it's not bad. Trip itself is free, and can be worth using.
Sap, Sunder: Junk.
Saving Throw feats: Junk, except maybe Bullheaded for an intimitank. Saves just aren't that important. In general, you get more out of just another Toughness.