The Best Outfield of All-Time?

Robert Creamer made the case for the 1890's Philadelphia Phillies:

The best outfield ever to play in the big leagues was a remarkable trio that spent five seasons together, a long time as outfields go, on the Philadelphia Phillies in the 1890s, way back in baseball's Dark Ages. Before you dismiss that best-outfield claim as the raving of a hidebound antiquarian, consider the exploits of Del. Big Sam and Sliding Billy.
Del was Ed Delahanty, the leftfielder, who was named to the Hall of Fame in 1945. Delahanty, 6'1", 170 pounds, was an accomplished outfielder graceful enough to play the infield when he was needed there. He was a remarkable hitter whose lifetime average of .346 is the fourth highest of all time; only Ty Cobb, Rogers Hornsby and Shoeless Joe Jackson have surpassed it. Delahanty was a righthanded power hitter, a crowd pleaser. In 1893 he excited the Philadelphia fans one day by hitting two long "foul home runs" to left in the ninth before clouting a bases-clearing triple off the centerfield fence. "The tumult was kept up for such a length of time as to make it absolutely necessary for Umpire Gaffney to stop the game for a while," reported the Philadelphia Public Ledger. "The spectators acted like maniacs; they jumped and danced around, threw straw hats, coats, canes and umbrellas in the air and yelled at the top of their voices..."
One day in Chicago in 1896 Delahanty hit a home run in the first inning, singled in the third, hit another homer in the fifth and another in the seventh. When he came to bat in the ninth, the Chicago fans were shouting, "Line it out. Del! Make it four!" He responded by hitting one onto the clubhouse roof in left for his fourth home run of the game.
Big Sam was Sam Thompson, the rightfielder, who was named to the Hall of Fame in 1974. He was 6'2" and weighed 207 pounds, huge for his day. Thompson, a lefthanded hitter (lifetime average: .331), was a slugger who in the 12 seasons from 1885 through 1896 finished first, second or third in the National League 37 times in such batting categories as average, hits, doubles, triples, homers, slugging percentage, total bases and RBIs. His career total of 129 home runs was a league record that stood for 25 years. In 1887, he led Detroit to its only National League pennant, batting in 166 runs; the second man in the league had 104. Thompson had more RBIs per game in his career than any other player in big league history, including Babe Ruth and Henry Aaron—.92 per game for Big Sam, compared to .88 for the Babe and .70 for Hank. Thompson led the league's outfielders in assists one year and is credited with popularizing the one-bounce throw to home plate. Previously, outfielders had depended on infielders to relay the ball. Thompson didn't play big league baseball until he was 25 and was 31 when the great outfield came together.
Sliding Billy was Billy Hamilton, the centerfielder, who was named to the Hall of Fame in 1961. He was built like a tree stump: 5'6", 165 pounds, with thick legs. He was a lefthanded singles hitter, and his lifetime average of .344 is seventh on the alltime list. Hamilton was the fastest man in baseball in the 1890s, an outfielder with great range and a base runner who earned his nickname by making headfirst slides 70 years before Pete Rose came on the scene. He led the National League in bases on balls five times, in stolen bases seven times and seemed always to be racing across home plate. He scored 1.06 runs per game during his career, still the major league record. In 1894 he had 192 runs, another enduring record.

Unfortunately for Delahanty, he is often times remembered for dying by falling into the Niagara River while drunk, and drowning.  As Creamer notes, the 1894 Phillies had 4 outfielders hit over .400.