I guarantee you Fire Tempest Rush monks is the fastest. I have the exact same setup as www.twitch.tv/streamerhouse (look at the VODs and watch inigo's setup), you're running so fast through mobs and they die instantly, and for elites you quickly cast Wave of light and off you go again. I used to do Condemn Crusaders before and, while they are also fast, monks are waaaay faster if you're doing it right (copy the Inigo's setup from the link above).