I'm not impressed, Anders. You seem almost proud that Google's (Nasdaq: GOOG) Gmail has a little more than one-third the registered users of Yahoo! (Nasdaq: YHOO) Mail. Even if Yahoo! got an early jump, Gmail's been riding those coattails for nearly four years now. If Google were commanding a market cap six times greater than Yahoo!'s, that wouldn't amuse me.

Oh, wait. It is. Oops!

I agree with you that Google is a cool enough company to throw side projects at the wall like lumpy oatmeal, just to see what sticks. But I don't see how that's different from less successful Web companies like CNET (Nasdaq: CNET), Dice (NYSE: DHX), or Internet Brands (Nasdaq: INET), whose own walls are stained with crusty globs of prior porridge.

Google goes from flop to hit, but so does Robin Williams. I wouldn't pay $200 billion for Robin. Maybe you shouldn't pay $200 billion for Google.

I hate to criticize one of my favorite companies ever, but it's just ignorant to believe that today's search-engine rock star will top the charts forever. Did you really compare Google to Berkshire Hathaway (NYSE: BRK-B)? Aside from their vast wealth, the companies don't exactly have a lot in common.

Come now, Anders, do you really believe that Google isn't spreading itself too thin? With the low-lying fruit of high-margin paid search all but exhausted, Big G is down to throwing its hat into lower-margin rings where it may not hold the same competitive advantages.

"There's no telling what Google will look like in 10 years," you wrote. I couldn't agree more. At this share price, Google must be perpetually more relevant with every passing quarter. The uncertainty of that position -- and the company's willingness to fail -- should scare any investor.

You're not done with the Duel yet! Go back and read the other entries, share your opinion in CAPS, and vote for the winner.

Yahoo! and Berkshire Hathaway are Motley Fool Stock Advisor picks. Berkshire Hathaway is also an Inside Value selection. CNET is a Rule Breakers newsletter recommendation. Try sampling any or all of the newsletters with a free 30-day trial subscription. The Motley Fool owns shares in Berkshire.  

Longtime Fool contributor Rick Munarriz is a big fan of Google. It would be his home page, if Fool.com weren't taking up that slot. He does not own shares in any of the stocks in this story. Rick is also part of the Rule Breakers newsletter research team, seeking out tomorrow's ultimate growth stocks a day early. The Fool has a disclosure policy.