Best Stock to Buy Right Now: Amazon vs. Walmart

Walmart (WMT -1.24%) and Amazon (AMZN 0.73%) are the two largest U.S. companies by sales, in that order. However, Amazon is closing the gap and is likely to soon overtake Walmart.You might think it's obvious that Amazon, with all of its artificial intelligence (AI), is the better buy today. But not so fast. Let's see why it may not be as simple as you think.The case for Amazon: AIAmazon is the largest e-commerce company in the country, and it's also the largest cloud computing company in the world. These tw ...