Really, what this boils down to is fit and where you'll be happiest. They're the same for your short-term goals, and will both lose relevance by the time you're ready to switch.
If you don't have prior PE experience, then you'll be recruiting for IB. Both, along with Columbia, are your best bets for a Wall St IB job. That's a draw. You'll get the same job and make the same pay coming out of any of those three.
Wharton has the larger PE footprint (especially in New York with the established PE crowd), but that's a function of their student body's pre-MBA experience. In your case, whether you're able to make the switch as a senior banker is up to you, your reputation and your networking 8 years+ from now, not your MBA.
I think Booth is a friendlier place with a clearer sense of institutional direction, and you'll be able to use your first IB bonuses to build wealth, rather than pay off loans. Whoever says that factoring in the scholarship is short-termist hasn't really seen what a difference it makes to start compounding $200k three years ahead of schedule. I'm biased (I didn't even apply to Wharton), but I say: I look forward to seeing you at Booth next year!