It barely shook off its competitors, but in the end, unofficial and/or part-time DJs Skrillex, Deadmau5 and Kaskade—to say nothing of exclusives like Diplo, David Guetta and Avicii—put the Encore dance emporium over the top. Encore, 702-770-0097. Fri & Sat, doors at 9:30 p.m.; Sun & Mon, doors at 10:30 p.m, cover varies.