<p>I agree with what BankonBanking said. Wharton, UChicago, and Stern are all very competitive internally. At Wharton, you will be competition with other ambitious undergrads on curves. Even though people say UChicago is for students interested in academia, don’t be fooled. Most econ majors at UChicago want to get into ib, and competition is fierce there. These American schools would definitely give you an edge over the British schools in NYC or Chicago.
For London at the undergrad level, LSE>Oxford>UCL. UCL is noted for excellence in social sciences and humanities, not for placing undergrads into investment banks. Oxford has an academic atmosphere, and it would trail LSE slightly in placing an undergrad into the city. This being said, the emphasis is on how you do at the school you attend, not on which school you attend out of these schools.</p>