If you asked investors for either their biggest winner or a stock they wished they'd purchased in recent years, there's a good chance Netflix (NASDAQ: NFLX) would enter the mix. Shares of the video-streaming leader have climbed an incredible 1,600% over the past five years alone, including a nearly 60% rise so far in 2017.That raises the question: Are there any stocks that could rival or even beat Netflix's returns going forward?So we asked three top Motley Fool investors each to pick a stock they believe could do just that.