Well definitely Dogma. Pitch Black was ok. Don't know anything about the other one.

Dogma and Pitch Black

Which ones have you seen?

I would get Carlitos Way and Pitch Black. I already own Dogma. Havent seen these two movies.

Carlito's Way is a spectacular film. Probably Pacino's best post-1980 work, and a far better DePalma/Pacino collaberation than the overated Scarface.

The other two are both OK. I'd go with Pitch Black, because if you're not a Kevin Smith fan, Dogma is not the best introduction to his work, and if you are a Kevin Smith fan, you wouldn't be asking this question.