I really don't know much about Goodwin, but Saniya may need to pick up her game. Saniya has shown she can really help the flow of offense for Dallas. They often stagnated when she wasn't in. I hope that and her good stint in Israel will keep her on the roster.
I'm more with you than with Shades, who said Saniya is in trouble.
Dallas led the league in offense and was last in defense. I think, as far as their senior years in college (the sixth for Goodwin), Goodwin is a clearly better offensive player than Chong. But Saniya was clearly the better defensive player, plus as you pointed out, a calming/organizing influence on the team offense. Couple that with her very good offensive performance in the Israeli league (top ten in scoring, top five in assists (that with a point-forward on the team in Crystal Bradford, too), I think Saniya should have an edge going in.
Not that she should be complacent.
Edit: I just looked up Goodwin's stats. She shot 0.412/0.262/0.722; IIRC Chong was around 50/40/80 her senior year. Goodwin's pts/reb/asst were very impressive 20.6/6.7/5.5 .
In the Israeli league, Chong was third-team all-pro; averaged 17.7/3.5/4.7, shot 0.512/0.310/0.815 . I hope she can build on that.