The analyst believes that despite Berkshire Hathaway's long-term holdings in Coca-Cola and American Express, and its continuous reduction in Apple and Bank of America, Alphabet stands out due to its strong growth in digital advertising and Google Cloud (Q2 2026 revenue share of 21%, up 82% year-over-year), as well as Waymo's leading position in autonomous driving. Furthermore, Alphabet's ability to maintain positive free cash flow ($53 billion over the past 12 months) while undertaking large-scale capital expenditures (2026 guidance range of $195 billion to $205 billion), coupled with its low valuation at a P/E ratio of 17, makes it the most attractive buy among Berkshire Hathaway's top five holdings.