Through the 2011 All-Star game, that is catcher Ivan Rodriguez of the Washington Nationals who has been selected to and played in 14 games, 12 as a starter.
Alex Rodriguez of the New York Yankees has also been selected to 14 All-Star games but played in only 12, 11 as a starter.
Michigan
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Mike Krzyzewski
I will interpret this question as "which active baseball players have had a 200-hit season at some point in his career?" 33 different active players have had a 200-hit season. Visit the link below for the list. http://www.baseball-reference.com/pi/shareit/MhWqb
Totally 9 active players from a team will be allowed.
Manny Ramirez is the top active non-Yankees player with the most postseason appearances with 111 games played.
Derek Jeter
During the regular season, there can only be 12 active players. so 36 players. However, there can be more, just not all of them will be active.
On www.baseball-reference.com, 181 retired players are listed who had a career batting average of .300 or higher, with a minimum of 3000 plate appearances. An additional 22 active players (as of June 2008) also make the list, but some of these may drop below .300 before they retire.
Michael Jordan is about as active as they come
25 players are active during the season.
12