I played around with excel and their radar plot charts don't work well for this since the data ranges are numeric and I couldn't figure out a way to edit them to text w/o getting into some programing. Scatter plots could be used to simulate a radar plot.
Unless you have better data visualization software, and need to have the chart automatically update, I'd draw a picture using PowerPoint myself. There are lots of specialized software programs typically used for more rigorous data visualization, but if you don't need fancy or frequent updates, I wouldn't use an expensive application to solve an inexpensive problem. Saving Changes...
"In Italy for thirty years under the Borgias they had warfare, terror, murder, bloodshed - but they produced Michelangelo, Leonardo da Vinci, and the Renaissance. In Switzerland they had brotherly love, 500 years of democracy and peace, and what did that produce? The cuckoo clock."