I haven't seen this fight yet, and probably won't because of the rules, but if I knew before hand they were both set to fight, I would put my money on Sarah, despite the size difference. So I am rather surprised by the fact not that Anastasia won, but that it was "very one-sided".
If Sarah was dominated like that by Anastasia, I no longer have any doubts about how a fight between her and Pamela would go. I would still like to see this one, with wild catfight rules, but I am pretty sure Pamela would win.