The table below shows the top 15 pitchers in strikeout-to-walk ratio since 1955 with 1000+ IP. For walks I used BB + HBP - IBB (which is called BB*). Data from Baseball Reference and the Lee Sinins Complete Baseball Encyclopedia.
In 1089 IP, Hoffman only hit 9 batters. The average pitcher would have hit about 4 times as many. And about 19% of his walks were intentional. For the average pitcher it was about 9%. Now for the guys who had 2000+ IP.