mbaapp,
My post was meant to be humorous.
However, i would caution you against assuming any school to be a "Safety". That is a theoretical concept-- just because an applicant's numbers look good against a school's numbers does not necessarily guarantee an interview/admission. It only means you have a better chance of getting invited to interview. There are many ways to mess up.
As an Indian applicant formerly in the I/I/M group, i know the lows of getting denied by a "Safety School".
As someone who's been on MBA forums for a long time, this is the first time i've seen someone ask if being married is an advantage. I know adcoms prefer diversity but i doubt that extends as far as marital status.
Diversity can be interpreted in many ways, and so far b-schools seemed to have defined that in terms of nationality, work-ex, type of work-ex, and GMAT. Being married is a life experience-- it is not an advantage or disadvantage. A lot of people dont believe in the institution of marriage (Susan Sarandon is a famous example)
As for you rationale that b-schools need more married women, i'm sorry but it appears that you could be biased in making such an observation simply because you are in that position. I'm not sure you would do the same if you are a single female. So far, no research has proven the merits of needing more married females in b-schools nor is there anything contrary to that.
You are focusing too much on the variables and not enough on the constants. You do not control how many married females will apply this year. Therefore you do not know how stiff your competition is. What you do know is yourself, your life-experiences and how your essays are going to shape-up. Irrespective of your competition, you should be strong enought to get into Darden on your own merit, not because you are a married-female.