Cisco and the Industrialyzer combo, no question. Their recent releases have been amazing and innovative. If I had to pick just one set I'd like to see right now, that would be it.
I'd agree with rita about looking at Lukas for the harder stuff. Dude has done some wildly entertaining sets. They don't just pound, they're also lots of fun.
And since nobody's said it yet, what about DSP? I'm not sure he's quite the name of some of the above, but if I were over there I'd love to see him tear it up.