WS that crit aren't that amazing outside of Abyssea, only the Empyrean Crit WS because they have a 15-20% base crit rate. Drakesbane is like 5% crit and with outstanding gear does maybe 900-2k(with a mean of like 1200) while Ukko fury does consistant 2600-3400 from what I've seen/noticed in my shell. Just cuz a WS crits doesn't mean it will be good outside of Abyssea.