In a similar vein, WSJ had a very clever "dartboard contest" for years. (http://www.investorhome.com/darts.htm) Unfortunately, it requires a subscription to see the results. You might find it interesting if you have one.
Berkshire Hathaway class A stocks, i.e., Warren Buffet's bets.
SPY = S&P500 Index ETF. That was actually a minor error on my part. I meant to link you to a comparison of BRK-A versus the SP500 index, not an trust that tries to mirror the SP500 index. Thankfully, for comparative purposes, they are virtually identical.