Its not better, you are required to file as NR, this is what i suggested, if u are here for less than 5 yrs.

But I know for a fact 99% of the students file as residents. Just info. for u!!

Watever u r saying in ur post, read my post carefully, i summarized that clearly there.

In regards to exemption N deduction, there has been new exceptions added to the list, who can claim or not.

For your reference, some of the rules overlap each other N they are too many exceptions that are not listed in IRS site. Recommendation: File your tax using software, it will automatically pick up the standard deduction and exemptions for you when u choose the right form.