Ted Williams may have been the most neurotic, obsessive hitter to ever play in the majors. His .344 career batting average and 521 home runs prove that the strategy he used to predict what pitch might come next and the precision he brought to the plate every day clearly worked for him. He was also the last player to ever hit .400 for a full season, finishing up at .406 after going 6-for-8 in a season-ending doubleheader—games he decided to play although sitting out, as his manager suggested, would have protected an exact .400 average.
After his playing days were over and he had too much time to think about hitting, as opposed to actually doing it every day, he wrote The Science of Hitting, a book passionate players still read today. Williams was certainly a guy you could expect to bring his all every day, not just for the good of his team, but to satisfy his obsession with getting solid hits and making it on base every time he came to the plate.