I plan to submit all of them are in Jan.
1) HBS - Think to submit only one as chances are very slim, any suggestion which one has better chance?
1) How practical in my application strategy? Is it too risky?
2) I already registered for GMAT retake? Will 740 change the game plan?
Thanks for your time in advance for your help.
I am happy to tell you that you are in very very good shape. These days we see lots of Asian candidates with Amazing GMATs, but we don't see that many valedictorians, and that is VERY strong. A 700 will make you a possible candidate at any of the schools you mentioned above, but of course a 740 will make a huge difference because then you have "everything excellent" and this is exactly the type of Profile that top schools LOVE.
The next thing to think about and work on, is how to make your goals and stories interesting and unique. Because there is no doubt that you are Top School materiel, but whether or not you get into the BEST schools will depend upon how unique and ambitious and passionate and interesting your essays are.
Good luck on your GMAT!
If you like the post, give it a KUDOS!