Welterweight bout:  Jon Fitch vs.  Johny Hendricks    
This fight will be slow paced filled with John Fitch molesting another person.  Fitch will win this but it might be a great fight to go to the bathroom or order another drink.   
Lightweight bout:  Nate Diaz vs.  Donald Cerrone    
This is going to look like a couple of ADD kids on meth kicking the crap out of each other.  Diaz is a bitch just like his brother and will be sure to complain about something.  Cerrone is nasty on his feet, can take a beating, fights dirty, and will try to throw submissions from anywhere.   
I like Cerrone in this fight with a nice submission.   
Heavyweight bout:  Brock Lesnar vs.  Alistair Overeem    
Simple fight right here, Overeem stays on his feet he wins, Lesnar takes him down and he will get his face beat in.     
I am picking Overeem just because his roid use and kick boxing is on another level.