Which of his top five stocks is the best pick depends on your investing style. The best overall stock, though, could be the one to which Buffett has given the highest praise. However, Buffett has over $1 trillion of Berkshire's portfolio invested in other publicly traded companies.

Thanks to an acquisition in 1998, the Oracle of Omaha has a bigger stake in the AI revolution than most investors realize.

Perhaps that’s one reason stocks are selling off globally this morning. While most indexes in Asia and Europe remain near their all-time highs, there is broad-based but mild selling in all of them.