McGwire stands alone as a power hitter, but he's just one of the stars at baseball's most loaded position, first base. Consider: Mo Vaughn has made as many All-Star Games (two) as journeyman outfielder Roberto Kelly; Rafael Palmeiro hasn't been to one in seven years. The emergence of Darin Erstad (whose future is in the outfield) further upgrades the position. Arizona's Travis Lee has the highest ceiling among an unusually large rookie class that includes Montreal's Brad Fullmer, Colorado's Todd Helton, Florida's Derrek Lee, Minnesota's David Ortiz and Cincinnati's Sean Casey