Druckenmiller is considered one of the best investors of all time.Billionaire Stanley Druckenmiller has earned a spot among the best investors ever. Through more than four decades of investing, Druckenmiller has yet to post a year where his investments finished in the red, and that includes during the Great Recession in 2008-09, when his fund at the time posted an 11% gain.Today, Druckenmiller still invests his personal money through the Duquesne Family Office investment firm. Investors have shown a great i ...