bb
bb I largely agree with the grid. However, I don't think that the suggestion to consider a school from Tier 4 (where Ross is placed) with a 20% scholarship over a school from Tier 3 (where Booth is placed) makes sense. 20% tuition scholarship usually amounts to ~$30k and I have a hard time believing someone would/should pass Booth for Ross for that amount of money (and I'm an international, so quite cost-sensitive myself.)
And then, another situation could be someone choosing between Haas (Tier 3) with no scholarship and Sloan (Tier 4) with 20% scholarship and the dynamics of the dilemma completely shift. I think the way schools are currently grouped in Tier 3 and 4 makes the 20% cut-off feel a bit impractical. Bringing this up since OP is considering between Tier 3 and 4 schools as per that list.
Having said that, OP - you have some serious consideration to do since attending Ross will essentially save you ~150k. It looks like you're currently in a comfortable position financially and won't have to worry about repaying a huge loan over several years should you choose your dream school - Booth - which can often mean limiting yourself to a certain lifestyle. So the question essentially is - how much does $150k in the bank mean to you now and how much will it mean to you 30 years from now?
It may also help if you revisit the factors that originally made Booth your #1 choice. The two that I've heard from you so far are being in Chicago and getting a marketing job. Ross sends a decent number to Chicago every year, but its alumni presence won't compare to Booth's obviously. Ross is also one of the top schools in marketing, ranked #3 in US News marketing rankings and behind only Kellogg and Wharton. (Booth is #6)
Are there any other factors that make Booth a dream school for you? How close does Ross come to delivering on those factors?
It's usually difficult to put a hard metric or financial value to these kinds of comparisons, and even more so if both the options do well on those factors. One approach to breaking the deadlock could be to compare the schools on the 3-4 most important and non-negotiable factors for you and try to answer in binary. (Example: Attending an M7 for your MBA. Booth would score a 1 whereas Ross would score a 0. Graduating with zero debt: Ross would score a 1, Booth 0. And so on.)
Hope this helps!