Line up:
1st Base: Lou Gehrig - 6 time All Star, 2 time MVP, lifetime .340 hitter and had over 40 homers five times.
2nd Base: Rogers Hornsby - 2 time MVP, hit over .400 three times (including .424 in 1924), 7 batting titles and had a career .359 batting average.
Sort Stop: Ernie Banks - 15 time All Star, 2 times MVP, hit over 40 homers 5 times and had 512 career homers and was a .274 career hitter.
3rd Base: Mike Schmidt - 12 time All Star, 2 time MVP, 10 time gold glover, led the league in homers 8 times and had 548 career homers.
Catcher: Johnny Bench - 14 time All Star, 2 time MVP, 10 time Gold glover.
Right Field: Babe Ruth - A career .342 hitter, lead the league in homers 12 times, hit over 50 homers four times, led the league in RBI six times, had over 150 RBI five times. Incidentially, he would be a hell of a relief pitcher.
Center Field: Willie Mays - A 20 time All Star,2 time MVP, led the league in homers 4 times, was a career .302 hitter and hit 660 homers.
Left Fielder: Ted Williams - The last man to hit .400, considered the greatest hitter to ever live, a lifetime .344 hitter, 17 time All Star, 2 time MVP, led the league in average 6 times, homers 4 times and RBI 4 times and won the Triple Crown twice. He had 521 career home runs. Think about what his numbers would have looked like if he had not missed 4 season due to military service.
Pitchers:
Left handed starter: Sandy Koufax - Only pitched 12 years. 3 Cy Youngs, 6 time All Star, 1963 MVP, Led the league in ERA from 1962-66, led the league in wins 3 times, led the league in strikeouts 6 times and had a career .95 ERA in four career World Series.
In 1966, at the age of thirty he was 27-5, 1.73 ERA, 317 K's (only 77 BB), 5 shutouts and 27 complete games (he led the league in all those categories) and then retired...talk about going out on a high note.
Right handed starter: Bob Gibson - 8 time All Star, 1968 MVP, 2 time Cy Young winner and 9 Gold Gloves
In 1968 he might have had the greatest season ever for a pitcher. 22-9, with 28 complete games, 13 shutouts, 268 K's( 62 BB) and an ERA of 1.12.
Closer: Mariano Rivera - His postseason statistics are stunning. In 70 appearences he 17-6, 0.75 ERA, 32 saves and in 108 innings has given up 9 earned runs.