I looked at the five best players picked at No. 4 in the MLB Draft:

The good news is that players taken at that spot have done pretty well. The top five players taken at No. 4 make a pretty impressive list.
You can read the entire list at Yahoo! Sports. The list includes two Hall of Famers, two that make a decent case for being in the Hall of Fame, and a current player that might eventually get into the Hall of Fame.