This is cool! I'd love to also see the leaders' rates over time, rather than a point-in-time snapshot. Switching banks is relatively time consuming. I'd prefer

This is cool! I'd love to also see the leaders' rates over time, rather than a point-in-time snapshot. Switching banks is relatively time consuming. I'd prefer to choose a bank with the highest rate over the last 1yr, 2yr, 3yr+ periods.