This up-and-coming AI stock could be poised for bigger gains than Nvidia over the next decade.Another quarter, another report of jaw-dropping sales. That's been a recurring story with Nvidia (NASDAQ: NVDA). The demand for the company's artificial intelligence (AI) chips shows no signs of slowing down.Does this make Nvidia the best AI stock to buy right now? I don't think so. My favorite AI stock could give investors a better chance of making even more money over the next few years.A perhaps surprising choic ...