I'm not Presbyterian, but I do have a deep appreciation for the Westminster divines, documents and history. I would think that any would be fine, I am one of those that prefers the original wording (with up to date spelling).
Pheobe Ann, are you a member of the Puritanboard? Great forum and space for the novice, intermediate, and expert of the Reformed faith. You should ask there, wise counsel is in the midst of them and very orderly than all the forums I've been a member of.