On Friday's edition of Where the Money Is, Motley Fool financial analysts Matt Koppenheffer and David Hanson took a look at some of The Motley Fool's newsletter services and the formal stock recommendations made there, to tell investors whether or not they agree with the analysts' picks.

In this segment, a look at the Fool's flagship service, Stock Advisor. They single out two of the services' picks from the financial sector, Berkshire Hathaway (NYSE:BRK.B) and MasterCard (NYSE:MA), and discuss why the leadership at both of these companies makes them great bets. The guys then take a magnifying glass to these two stocks, to find out if there are any other reasons why they would doubt the investing theses here.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.