1. University of Pennsylvania: Wharton – http://www.wharton.upenn.edu/
It is the World’s first collegiate business school, established in 1881. It has
the Largest and one of the most published business school faculty, with 250+ standing and associate members. It has 11 academic departments and 25 research centers and initiatives. It has 86,000 alumni in 145 countries around the world.According to Wharton – “When it comes to business executive education, learning is not enough. It is about returning to work prepared to make an impact. That is the true measure of success. That is why our open-enrollment programs are focused on one thing — results. At Wharton, we are dedicated to delivering Impact through Education Our open-enrollment executive education programs are designed to leave a lasting impact on executives and their organizations. That is why we offer a unique, multi-month process that helps reinforce the classroom learning —and achieve maximum impact back at the office. We call this the WhartonLearning Continuum.” With over 250 professors, 18 majors and nearly 200 electives, the Wharton MBA program gives you enormous flexibility and choice to follow your
interests — including the power to create your own individualized major.
For More details, Check out: http://www.wharton.upenn.edu/

2. Harvard Business School – http://www.hbs.edu/
Harvard Business School (HBS) is the graduate business school of Harvard University in Boston, Massachusetts, and is widely recognized as one of the top business schools in the world.
About Harvard Business School – Harvard Business School (HBS) is the graduate business school of Harvard University in Boston, Massachusetts, and is widely recognized as one of the top business schools in the world. The school offers a full-time MBA program, doctoral programs, and many executive education programs. It owns Harvard Business School Publishing, which publishes business books, online management tools for corporate learning, case studies, and the monthly Harvard Business Review. It is ranked #2 among U.S. business schools by U.S. News & World Report,
#1 by the QS Global 200 Business Schools Report,[3] #2 by Bloomberg BusinessWeek, #3 by Forbes, and #14 by The Wall Street Journal.
Internationally, it is ranked #3 in the world by the Financial Times, #5 in the world by The Economist, and #21 in the world by The Wall Street Journal. Three HBS professors, Mikolaj Piskorski, Zeynep Ton, and Anita Elberse, were recently named the 40 Best B-School Professors Under the Age of 40 by Poets & Quants.
According to Harvard Business School – “For more than a century, our faculty have drawn on their passion for teaching, their experience in working with organizations worldwide, and the insights gained from their research to educate generations of leaders who have shaped the practice of business in every industry and in every country around the world.”
Introduced to business education in 1925 by HBS faculty, the case method is a powerful interactive learning process that brings the complex and dynamic realities of business analysis and decision making into the classroom.
The cornerstone of the School’s renowned general management approach, the case method provides students with the transcendent skills, insights, and self-confidence required to meet the interdisciplinary demands of real business situations.

HBS faculty work with business leaders at organizations of all sizes around the world to research and write more than 350 new cases each year,
updating and refreshing about a third of course content annually to ensure relevance to current and emerging practice.
Nearly 80 percent of cases used at business schools worldwide are developed by HBS faculty.
The School’s commitment to being at the forefront of the current and evolving practice of business has led to education and research programs that reflect the realities of the marketplace.
Case studies replicate actual business situations and are taught so that students must work together to make difficult decisions under typical management conditions, including a lack of complete information, complex tradeoff situations, and time pressure.
Research at HBS is firmly grounded in knowledge of business processes—in entrepreneurial companies and established firms as well as nonprofit organizations—and unconstrained by the boundaries of academic disciplines.

For More details, Check out: http://www.hbs.edu/

3. Stanford Graduate School of Business – http://www.gsb.stanford.edu/ Stanford University is one of the world’s leading research and teaching institutions. It is located in Palo Alto, California. Stanford Graduate School of Business offers full-time MBA, PhD, and MS degree programs, executive programs for experienced managers, and lifelong learning About Stanford Graduate School of Business – Stanford University is one of the world’s leading research and teaching institutions. It is located in Palo Alto, California.

Stanford Graduate School of Business offers full-time MBA, PhD, and MS degree programs, executive programs for experienced managers, and lifelong learning
The mission of the Stanford Graduate School of Business is to create ideas that deepen and advance our understanding of management, and with those ideas
The Stanford Graduate School of Business (also known as Stanford Business School, Stanford GSB, or The GSB) is one of the professional schools of Stanford University, in Stanford, California.
The Stanford GSB offers a general management Master of Business Administration (MBA) degree, the Sloan Master’s Program (which is a full-time ten-month MS in Management for mid-career executives) and a Ph.D. program, along with a number of joint degrees with other schools at Stanford University including Earth Sciences, Education, Engineering, Law and Medicine. The school is the #1 ranked business school in the United States by U.S. News & World Report.

In its biennial report “Beyond Grey Pinstripes”, the World Resources Institute and the Aspen Institute identified the Stanford Graduate School of Business as the leader among business schools that are incorporating academic content involving ethics, corporate social responsibility, and environmental sustainability into their curricula and activities. The ranking was based on an extensive survey in which schools were asked to describe cases, research, and course content that address these issues.

The curriculum is designed to transform students — expanding their ideas, knowledge, and capabilities and preparing them to think, act, and even dream differently than when they arrived. During their first year, MBA students are greeted by a challenging curriculum divided into:

 Perspectives courses such as Ethics in Management and Strategic Leadership, to give them the broad context of managerial issues

 Foundations courses to provide the groundwork, such as how to use accounting to understand the performance of a company or how to build models and use economic theory to project future outcomes In addition to these curricular challenges, we work to help students develop capabilities necessary to lead, to achieve, and to change the world — to help them reach heights they may not have imagined when they arrived.

We do this in three areas:
 Critical Analytical Thinking — the ability to construct and recognize solid logical arguments, their underlying assumptions, and their limitations.
 Personal Leadership — a deep self-awareness of their own strengths, weaknesses, and even identity, coupled with an understanding of myriad influence styles and how best to use them.
 Innovative Thinking — the ability to think creatively and to develop new solutions to old problems.

For More details, Check out: http://www.gsb.stanford.edu/
The above are amongst the 3 best business schools in USA.