Silly wireless question on SSID

[lleachii]

Dual-band SSID Best Practices?

What's the best practice for setting SSIDs on a dual-band access point? For example, on a router with 2.4 GHz and 5 GHz radios, should I: Set both SSIDs to the same value, and have clients connect to that SSID, leaving the choice to the client OS. Set a different SSID for each band, and configure the client OS to connect to exactly one of them. Set a different SSID for each band, but configure the client OS with both of them in order of preference (if the OS allows it).