I feel like many say Jeffries, but their resumes are pretty similar and I could totally see an argument for Sullivan. Here are their significant wins: Sullivan: Kilrain Mitchell Burke McCaffrey Goss Professor Donovan Greenfield Ryan Jeffries: Fitzsimmons Corbett Sharkey Ruhlin Griffin Armstrong Who has the more impressive resume? Who's better all time?
It rather depends on what you like. Sullivan has more depth to his resume, and much greater longevity, but I think that there were a lot more good Queensbury fighters during Jeffries reign. A lot depends on how good you think Sullivan's opposition was.
i would give the edge to Jefferies mostly due to the fact that his three best wins (Fitzsimons twice and Corbett) are better than any win Sullivan has even with his deeper resume and superior longevity
