Here today, gone tomorrow. That's how quickly stocks can fall out of favor with Wall Street. But let's be honest: Wall Street gets it wrong and savvy investors who can pick out their mistakes could be greatly rewarded. Here are three stocks that Wall Street hates and our contributors' thoughts on each: Williams-Sonoma (NYSE: WSM), Fitbit (NYSE: FIT), and Snap (NYSE: SNAP).Daniel Miller (Williams-Sonoma, Inc.): If you're looking for a stock Wall Street hates that's poised for a rebound, Williams-Sonoma could be just what you're looking for.