r u kidding? 760 retake the exam? what about if I fall below that score even the awa is improved (which I donot think it is hard to get 4.0)? then I need to retake, retake and go on to make sure get a score at least 760?
It wouldn't make a big difference if your score drops from 760 to 720, but it would be a shockingly improvement if your AWA is 5.5 instead of 3. Since you can get 760, a 5.5 AWA wouldn't be extremely difficult, would it? People suggested you to rewrite the exam coz your goal appears to be the top 10. A bit of perfectionism DOES help when you set your target on the top.
I would recommend you contact the admission offices of those schools. It really depends on the school you are applying for. As for myself, I am going to apply a weak school nearby my house. I mean, are you seriously thinking of paying $80,000 for MBA? That is a lot of money. I sure hope your investment will pay back.