Sorry I'm late this week. This week's brutal warrior is Savidan. The violent nature of his wikiwar is quite apparent from his userpage, which features a violent painting. Potential socks include Sky Attacker (notice the motif of violence), TexasAndroid, Niteshift36, ChildofMidnight, etc. I seriously doubt Richard Arthur Norton (1958- ) (I think I typed that right) is a sock of Savidan, but I could be wrong.
Someone suggested I nominate Jimbo Wales as a brutal warrior of the week. The idea is so ridiculous I had to mention it. That would be like giving a gladiator's trophy to the owner of a gladiatorial arena.