Purush is right!! i had prepared I-20 for my wife and took it along with me, then we adjusted the date of marriage (court papers) according to the date on I-20, then applied to the embassy along with financial documents (from my side and father in law's side). But the only thing the counselor looked for was the marriage photographs and my TA ship, didn't even bother to look at bank documents. So it really depends on the counselor as well.