Well ofcourse somebody who uses vBulletin would have to agree (well..webmasters maybe)
If you posted this topic on UBB forums, replacing "vBulletin" wtih "uBB", I'm sure most people would agree the same.
I personally have enjoyed my experience with vBulletin because of all the coding knowledge and skill I've gained.
I recently registered at an Invision Board though, and I must say they run very nicely. Some of the Invision Boards I have visited are fairly hacked up, but run and generate very quickly.