Who's the best hip hop dj?

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I was in Houston last month for a Bun B (rap artist) concert and Dj Hi-C was deejaying. He had the place rocking the whole night! He played music from the 80's on up to the present. He did a lot of scratching and even made some on the fly remixes. Just wanted to know who you guys check for as far as dj are concerned. So who's rocking your city?