Emory ($$$) vs ISB

Wow.... waiting until the last day

It is a pretty substantial choice you are making. If you go with Emory, you are likely to take the US-path and either stay here forever or at least spend 3-6 years working before transferring back home. I have not been to India so i can't comment on how much different the experience will be but my guess is substantially. However, reading your tone/opinion, it sounds as though you have visited the US and spent some time traveling, so leaving home is not a priority.

The second missing piece is $$ at ISB. How much is your cost there? Is it a 1 or a 2-year program?
My guess the living expenses at both places will be different as well. However, in my experience most folks pick schools based on the upside rather than the cost-savings portion.

Goizueta is Good in terms of rankings - it broke into Top 20 a few times in the last 5 years, and is on an upswing in terms of employment numbers, applicants, and salary figures. I think it is a solid choice, esp with the scholarship - you can't go wrong with that. In terms of MBB, it is a hard space to break into even if you go to Booth or any top 10 school. There are many more applicants than those who get accepted from a class of 500 or 800 so while you can lament lack of hiring at Emory, no program will guarantee it to you.

My big unknown is ISB and what it can provide you with. The biggest factors for me would be employment options/guarantees at the end (H1B and International aspect is a limiting factor but not a roadblock; you knew that going in). If you want international experience, I feel you would have better chances going to school in Atlanta and getting a job in South East and spending some time there vs. working hard to get transferred from India to elsewhere. (Usually a more complicated track).

Congratulations and good luck with your decision!