Tate is a huge step up in skill compared to the nobodies Rousey armbarred in her amazing 4 fight winning streak. If Tate could handle a diverse fighter like Coenen, no reason she can't handle Rousey. I'm still worried Rousey will armbar her fast for some reason, that would piss me off.
Both of these girls look focused and does seem like they don't like each other. They did a good job of promoting this fight themselves. Won't be surprised if the arm bar gets slapped on by Rousey, but I think Tate will take this. More experience.
And yea, Rousey does seem to be like the Diaz bros.