The intelligence of Pink SPOILERS
Not the most likeable character, and he is no rocket scientist to be sure (none of them are) but I would say among the film's personalities, Pink is the most intelligent. He puts together quite a good defence of his anti-tipping attitude, then after the robbery he guesses (correctly) that the cops had inside information, whereas this did not seem to occur to White even though he had previously been in a situation where there was an undercover cop. He is astounded that White tells Orange his real name, and Pink clearly would not make such a basic mistake. At the end he is smart enough to take cover when it is clear that the others are about to shoot one another. He is alive at the end, although the soundtrack suggests the cops capture him.
"Chicken soup - with a *beep* straw."