In 1967, both leagues voted to add 2 more teams each, to bring the league total to 24 teams, which started in 1969. Divisional play also began, with each league dividing into East and West division, creating another round of playoff games to decide the pennant winners.
Albert Pujols is hands-down the choice for the best player here, but after him is a pair of guys who will no doubt have trouble gaining entrance into the Hall of Fame and have become polarizing figures in the sport in Barry Bonds and Alex Rodriguez.
Few pitchers were truly dominant over the course of the entire decade, and even Randy Johnson (age) and Johan Santana (injuries) didn't put together a complete decade. Curt Schilling, Andy Pettitte, CC Sabathia, Barry Zito, Trevor Hoffman and Roy Oswalt were all solid performers. Mariano Rivera and his cutter dominated teams for most of the decade.
On the offensive side, Derek Jeter and Ichiro Suzuki are worth mention, as well as a host of others - Vladimir Guerrero and Manny Ramirez. Chipper Jones, Carlos Beltran, Todd Helton, Scott Rolen and Jim Edmonds.