Hmmm. I give the edge to Ms.Marvel being that she's more experienced in fighting. Their strength is too close to really make a huge difference(class 60 to class 75). And if she has any energy projection and decides to use it, Carol can pump herself up to class 100+ like her Binary days.
Round 1 I think it'd go to Ms.Marvel. With energy blasts and martial arts that'll give her enough of an edge.
Round 2, since it's pure physical force(and I dunno how Namor and Namorita are effected by wet mud) I think Namorita has this one.
Round 3 I give to Ms.Marvel. Assuming both are wearing normal clothing as not to cheat and wear something untearable without immense strength, then Ms.Marvel has the advantage until Namorita gets in close and uses an acidic touch to burn Carols clothes down. Whoever wins, so do we.