question: Provide me with a list of the most recommended wine varieties by sommeliers for personal collections, mentioning the frequency of recommendation for each. Present your answer in a list with at least 5 bullet points.
answer: - **Pinot Noir**: Frequently recommended due to its complex flavor profile and aging potential.
  - **Cabernet Sauvignon**: Highly recommended for its robust structure and ability to improve over time.
  - **Chardonnay**: Often suggested for its versatility and adaptability to different terroirs.
  - **Riesling**: Commonly recommended for its aging potential and diverse range of flavors.
  - **Syrah/Shiraz**: Regularly recommended for its bold flavors and ability to develop depth with age.