The (pathetic) 4 Horseman got outsmarted & outplayed on two fronts. Dreamz doesn't have the chops to pull off his dual-role (obviously, no one trusts him) and is likely to get picked off next as he can be a threat in the challenges. People are scared of Alex, as well and he will certainly be a target.
It will be interesting to see what happens with Stacy, Dreamz & Boo at this point. The smart move for them would be to align with Mookie & Alex. They need to get the other idol out of play. Otherwise, Earl has too much power.
As opposed to some other seasons (with the same amount of people left), the next few immunity challenges are huge and will make the finale very interesting. There doesn't appear to be two major camps and many people will be looking for alliances that will only last a week or two. Fun stuff.
I'll also mention that I love to hate Yau Man. His arrogance annoys and entertains me. I'm rooting for Alex, if only just to see if he can orchestrate his way into surviving past 3 more Tribal Counsels.