yes CDP and LLDP Information would be great.
Information local port, remote port, remote MAC, remote IP and so on.
Will be helpful for scanning devices and find links between Switches and Routers
I'd like to add my weight behind this request. Although the SNMP feature is useful, when performing site surveys, LLDP and CDP would save a lot of time and would allow scanning devices with dynamic IP's to collect results without having to modify each switches SNMP settings.