Confused regarding profile submission in my name or wife

[steelJ]

Dear friends
I had submitted my EE profile i had good IELTS score(L:9; R:8, S:7.5 RW:6.5) however my wifes score is better(L:9; R:8, S:7.5 RW:8) but in CRS i am getting 383.
However if i submit with my wife( She has a masters degree) as primary applicant i am getting 453.
my query is it better to submit with my wifes profile or my own profile by resitting IELTS?
if i submit with my wife's profile do i have the same chances to land a job? or only primary applicants are entertained for a job?