Hi anbesa,
You're ultimately asking Admissions questions, so if you know the specific Programs that you plan to apply to, then you would likely find it beneficial to speak with an Admissions Expert about your overall profile. There's a Forum full of them here:
https://gmatclub.com/forum/ask-admission ... tants-124/In real general terms, the higher your GMAT score, the better. However, competitive Business Schools look for strong OVERALL applicants, so beyond having a competitive GMAT score, you need to have a strong OVERALL application and you need to properly 'market yourself' to each individual School that you plan to apply to. If the only aspect of your application that 'stands out' is a high GMAT score, then a slightly higher score likely won't do much for you (so your focus would need to shift to making other aspects of your application stronger).
GMAT assassins aren't born, they're made,
Rich