Firstly, congratulations

!! Receiving scholarship money from all three schools is no small feat.
I wanted to chime in because I have a relatively similar background and also possess less-structured career aspirations (i.e. a field outside of investment banking & consulting). I also got accepted to Columbia and Wharton (albeit with no $), completed a stint in investment banking, and now aspire to work in the hedge fund industry (not exactly retail / luxury, but a career field that similarly doesn't have a structured hiring process that typically adheres to a recruiting calendar).
Because your specified career interests are in retail / luxury, I would recommend Columbia over Wharton! Retail / luxury is, to my understanding, relatively tough to break into because the recruiting process isn't as robust and structured as IBD / consulting / F500 positions. However, what would differentiate you from other candidates would be: 1) network and 2) previous work experience. Columbia has a pretty strong Retail & Luxury Goods Club that would connect you with CBS alumni currently in the industry, but most importantly, provide you with an avenue to obtain an academic-year internship (Fall or Spring) at a luxury goods shop. I think this is the biggest competitive advantage that Columbia has to offer over Wharton - because you're domiciled in NYC (literally the fashion capital of the world), you have the opportunity to intern at a luxury / retail firm during the school year and build your work experience, so that when a full-time offer is posted on OCR during your second year, you can have an upperhand vs. other candidates. I ultimately chose Columbia over Wharton because I want to transition into the hedge fund industry and while the alumni base in the hedge fund industry is probably equally abundant for CBS and Wharton, I have 0 experience in the industry and could complete Spring / Fall internships while in school to position me for summer internships and subsequently, full time positions (not to mention the Value Investing Program at CBS) during my 2nd year.
Columbia also has one of my favorite "master classes" in the design & marketing of luxury goods - it's a class at Columbia Business School where they partner you with students from Parsons (the New School) and you work on an actual project with top-tier companies including Hermes, Chanel and Van Cleef & Arpels (if you google "columbia parsons", you'll get a bunch of information!). During Columbia Connect (admitted students weekend), I met an enterprising female student that completed this course and ultimately wound up working for Chanel.
In the end, you mentioned that you may want to go back into the financial services industry with a retail focus, and I think that for sell-side positions, Columbia, Wharton and Stern would actually provide no differentiation there.
However, you want to enter an industry that requires you to be more enterprising / self-driven / entrepreneurial than the typical IBD / MBB track, and as such, I would recommend CBS!
In the end, I have learned, as you noted, outside of HBS / Stanford, the next 5 schools each has its own competitive advantage and you really just cannot go wrong (Wharton may have the history & marginally higher prestige / Columbia has NYC (and a new building and a recently completed $6.1bn fundraising campaign at the overall university level that exceeds that at Yale & Penn!) / Kellogg is a consulting & marketing powerhouse / Chicago has PHD-level academics / MIT has tech & entrepreneurship). They are all amazing!
I left out Stern because while it is a great school in its own right and a full-ride is very, very nice, it is in a different tier relative to Wharton / Columbia.