Another vote for the Spank Vibrocore. Spike or Trail models, either is good - but trail is lighter from memory.
I've had Renthal carbons previously, they were okay for vibration dampening but I found them to be a tiny bit flexy (I'm about 95kg kitted up at a guess). Mate has Renthal alloy FatBars, they seem good for minimising unwanted trail feedback too, but without the flex of the carbons.
Different mate had some RaceFace bars, they were shocking. Worst "buzz" I've ever experienced through the bars on any bike, and very very noticeable. He'd been suffering with hand numbness, I hooked him up with a set of Vibrocores and he loved them. Hand numbness was all but gone after that.