You (the wife) should be the primary applicant because your husband doesn't yet have a bachelor's degree.
Beyond that, it all really comes down to your English reading/writing/listening/speaking ability. For that, you'll need to take the IELTS.
You probably already know that your chances will be better after your husband completes his bachelor's degree.
I there
I woul also like to add that once he gets his bachelor degree, it will add more valuable points
Good luck
Eduardo