Gmail is the leading email service with over 1.8 billion active users, offering a modern and seamless experience with features like scheduled sending, smart replies, and integration with other Google apps such as Google Calendar, Google Docs, and Google Drive. It has a better security record than Yahoo Mail, having historically done a better job at keeping user data secure. Gmail also offers more extras and integrations, including all the other Google apps, making it a more comprehensive email service. However, Yahoo Mail has an advantage in terms of free storage, offering 1 TB of storage for its users, which can be a major benefit for those who need to store large amounts of emails. Overall, Gmail is the better choice for most users, but if you're already invested in the Yahoo ecosystem and don't mind the limitations, it remains a decent email service.