His career slash line of .310/.399/.398 doesn't look fantastic, but that nearly .400 OBP made him extremely valuable. He wasn't incredibly fast, stealing only 179 bases across 20 seasons. Also, as evidenced by his low slugging percentage, Appling hit only 45 home runs in his career. However, he did average about 25 doubles per season, and had more than 10 triples three times. He was a cornerstone of the White Sox franchise for a long time and his plate discipline combined with his well above-average defense made him consistently a 5-6 WAR player - easily a Hall of Fame-caliber player.
Unfortunately, "Luscious Luke" never won a World Championship. But he did finally make it into the Hall of Fame in 1964. He passed away at the ripe old age of 83 in 1991.