I could keep running speed tests all day, but I am actually supposed to be implementing a blog here.
The test results were not conclusive. Even if there had been huge differences, both CMSs have plugins that can be used to improve load times. A comprehensive test would have to implement some of these. Arguing about which ones to deploy and the validity of various tests could effectively prevent a conclusion being reached before the end of time.
Bottom line: I’m happy now that WordPress won’t make my site crawl. Blogging will be the main activity of the site in the future so I’m going to convert to WordPress immediately. I already know it’ll take less than an hour.