HBS and Stanford are slim. Too old. Even if you didn't take 2 extra years in college, you'd still be on the older side than the hordes of finance folks applying. And for these schools, how you stand out isn't about how great of a finance guy/gal you are, but how great you are outside of finance (they really don't want Gordon Gekkos or hardcore finance guys in their class; in fact, between finance and consulting, the M/B/B consultants tend to have an advantage over the blue chip finance folks at these two schools, especially post credit crisis).
Wharton - a stretch; maybe the only one of the three that may show you more love assuming you have a solid application. But then again, they are also going younger, and they will experience the spillover effect from H/S targeting younger folks since a lot of these younger folks will then be applying to Wharton as well.
Sloan, Columbia, Chicago, Kellogg - you'd have a shot, with Columbia and Chicago most likely showing you more love because you can get away more with the "hardcore finance guy" archetype.
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