Purely in terms of contributions to the highlights episodes/how often we even see them I suppose i'd go for Christian, Danny, and Kieran, but based on that definition of 'dullard' I guess they're all boring by default now as none of the housemates are shown over the 'legends'.
In reality for me the biggest dullards of the year are the producers for forcing the likes of Helen and manipulated arguments on us every night.
