I can't believe nobody has mentioned these stats...
1) Cal Ripken Jr. - 2632 consecutive games started, this is an insane record, no active streek is even remotely close. Miguel Tejada made it half way there, but that ended last season.
2) Ty Cobb - .366 lifetime batting average, after 23 seasons. Hitting like this will NEVER be seen again.
3) Pete Rose - 4,256 career hits, He was never as a great a hitter as Ty Cobb, but he was consistent for a LONG time. No active player is even in the top 50, Griffey Jr. is the closest at 2,653 and his career has been in a serious state of decline.
4) Richard Petty - 200 Wins, not even remotely possible for another driver to accomplish for several reasons.