The final three have been known for awhile. But as far as which one wins, nobody will know until the results are read tonight. But if you really want spoilers, here ya go: (Written in white so you cannot see unless you highlight).
The final 3 to make it to the end will be Dawn, Sherri and Cochran. Eddie will be voted out sometime tonight...obviously since he is in the opposing alliance & outnumbered. Erik either has a mental breakdown & asks to leave, or has some sort of injury. This leaves Cochran, Sherri & Dawn. It is believed that Cochran wins it all, but you never know.
*Please do not quote the above, as it contains spoilers. And read at your own peril.