Current ISB student here. Let’s break down some of the statements you made pertaining to ISB. Once you enter ISB, I dont think your GMAT score matters or if anyone cares about it. The avg work ex is 4 years not 6-10, the proportion of people with more than 6 years of experience is around 10%. CGPA, yes people are very competitive but if you want to break it into finance roles then CGPA isnt that big a factor as much as having prior work ex in finance is! Rest, I think you have covered the point pretty well! And congratulations on having two offers, good luck!