The way I'd see this going is Watson going for Stewart while Stone goes for Lawrence. Watson would win her bout quite quickly but would lack the ability to put Stewart down for good, every time she moved to help out Stone, Stewart would drag herself to her feet and break it up. Stone I think is a pretty decent fighter for her size but Lawrence has just got a bit more of it, she would put up a fair fight but would be out of it by the time Watson could come to her assistance.