Keeping it in Seattle after last week's Duel over the latte mavens at Starbucks (NASDAQ:SBUX), we're going to take a closer look at both sides of (NASDAQ:AMZN) today.

Amazon started out as a modest bookseller, taking on the likes of Barnes & Noble (NYSE:BKS) and Borders (NYSE:BGP) on the virtual bookshelves. These days, there isn't a lot that it won't sell. Lately, that even includes groceries, if you live in the right market.

It's doing it right, too. Despite its size, it is growing more quickly than smaller dot-com merchants such as (NASDAQ:OSTK), Red Envelope (NASDAQ:REDE), and Bluefly (NASDAQ:BFLY). However, the share price has been growing pretty quickly, too.

So is Amazon -- a popular Motley Fool Stock Advisor newsletter recommendation -- overvalued? That is this week's question. Anders Bylund is our bull, sensing that the shares still have room to run. Alyce Lomax is our bear, worried about the bumps to come.

Which Fool is right? That's what this week's bout is all about.

Duel on!

Amazon and Starbucks are Stock Advisor recommendations. Borders is an Inside Value selection.

Longtime Fool contributor Rick Munarriz remembers being one of Amazon's earliest customers. He does not own shares in any of the companies in this article. The Fool has a disclosure policy.