I plan to apply for Wharton / Stanford / Chicago for 2009 admission. I worked with my father for family business, so would it be better for me to receive a recommendation letter from one of our clients who knows me well rather than my father or any other person inside our family business? I guess that if an insider writes a letter for me, ADCOM might think it is not credible (or biased). Please let me know what you think. Thanks.