Rousey wins with an arm-bar, of course. In my opinion, Rousey is one-dimensional as a fighter. I would love to see her win a fight without an arm bar to prove that she is a well rounded fighter. But, of course, she wins, and that is the bottom line so I can't take that away from her.
I would like to see Tate beat Rousey in this fight if, for no other reason, than Tate would have to fight Zingano again. I agree with WJohn that the Zingano vs. Tate match was a great match up of two physical equal and skilled fighters. I loved the picture of the Tate vs. Zingano weigh-in. They were in each other's face and it displayed their bodies to good effect. In short, it was hot. Zingano certainly took care of business with Tate in their last fight but I would like to see whether she could do it again. In fact, I would love to see a Zingano/Tate fight go the distance with the final tap out only minutes from the end of the last round.
I would love to see one of the great writers on this board (Scribbler/Braveheart/Irish) write an after-fight story of the Rousey/Tate fight when Rousey goes to Tate hotel room to accept a very special challenge that Tate made at the conclusion of their TV series "The Ultimate Fighter".