If you've got a network consisting of all Cisco equipment and you've maybe only got a couple of VLANS should you run RSTP rather than the default PVST? And if you've got a lot of VLANS should you run MST? I've been doing quite a bit of reading in the last few weeks and it seems to me like the standard PVST should not be used unless you've got a mix of Cisco and other kit. After all RSTP is better and you don't have to bother with Uplinkfast or Backbonefast as they're built in. And if you're running a lot of VLANs then wouldn't MST be the logical choice as it can load balance and doesn't produce many BPDUs?
I've only seen ieee in use though for some reason. Are there many people using RSTP or MST?