To me, the clear leader in Entrepreneurship is Stanford. As I said in my application essay, for someone like myself who is an entrepreneur and hopes to launch a new business in the future, Stanford's track record for successfully launching businesses is unparalleled. At other schools you might compete in new business competitions and win $50,000 to launch a business, but at Stanford, you skip the BS and have serious thoughts about launching a new venture with high quality VC money and support. I believe Wharton is also very strong, and I have heard Harvard is as well, though I didn't research there myself. I know that MIT has an excellent structured program for starting new businesses. After that, I think Michigan, UCLA & Berkeley are well regarded, but clearly a step back from H/W/S & MIT.
For Finance, I think it is a 3 horse race for the top spot between Wharton, Chicago & Columbia. Wharton probably offers the the broadest range of academic theory and professional influence. Wharton will help you get any finance spot in any organization. Chicago has a reputation for strength on the academic side, especially as finance relates to economics - the common belief is that Chicago places people behind the scenes working with supercomputers & spreadsheets crunching numbers. Columbia is the home of value investing (Graham & Dodd and Warren Buffett) and has an economics Nobel Prize winner currently teaching. Columbia's greatest strength is its connection to the banks and is certainly helped by its location in NY. There are 614 Columbia MBAs and Citigroup, 453 at JPMorgan Chase, 308 at Goldman Sachs and dozens or hundreds at every top bank; and access to alumni requires only a cab ride.
I think that NYU offers great access to the top banks, but is clearly not regarded in the same league as the above 3. Of course, Harvard & Stanford, along with Wharton, are the keys to some of the most selective jobs in PE/VC and investment management. UCLA and Berkeley are pretty well regarded on the west coast but I don't think they have much pull in NY.
For international reach, Harvard obviously has the brand that really travels the best. Stanford is a close second, and in finance circles the Wharton name is tough to beat. Needless to say, there is a reason why everyone wishes they could go to H/W/S, no matter what field they hope to join. I think that Columbia has a very well-defined and well-connected international base for finance issues. I think that Berkeley has a good program for the Asia Pacific region. Wharton's Lauder program is probably the benchmark for all other international travel programs.
These opinions are just based on my personal research and interactions with schools that I had some interest in. There are definitely other strong programs, but I think that people should generally try to stick with the best possible cluster, and then use specialty data to decide between them. For example US News ranks Babson College #1 in Entrepreneurship, followed by Stanford, Wharton & Harvard. Seriously, does that even make sense?