Uppers, Sakrohm and Montana have got a fixed bonus rate (ie. no matter how many pills you use, the bonus is constant) : -X opp attack min Y.
However, in case of the Bangers and the Ulu Watu, it is not so (There exists a simple formula - " number of pills (n) = attack (2n plus 2) " [ note: applicable only when the bonus is triggered ]. In laymans term, " The higher the number of pills you spend, the greater the attack becomes ")
What I meant to convey thro' all this is that, use Laetitia if you have a bagers deck/combi or if you are a generous player. Or use Jim if you are a Pill-saver or are using an Uppers deck/combi.
Saddy is good but Laetitia and Jim are better against the Ulu Watus.