Yes thank you,but no offense,but I think Jack is a pirate who doesn't like to kill,here's why:
1.Someone said that Jack always runs away from a fight (I think it was the other pirate in the 3rd).
2.He had the chance before to kill Davy Jones in the 2nd when he had gotten the chest (I don't remember all of it,how did he lose the chest,and where did it go?)
3.He was holding Davy Jones heart in his hand at the end with the knife pointing towards it,but didn't do anything.And Davy Jones was talking to him and then Davy Jones looked at Elizabeth and Will,and relized that they were lovers,and said something,and then stabbed Will.
But then I have a question,I thought Will only became the captain of the Flying Dutchman because his father took Will's heart out,and he was already dead I believe.But does it say in the first that whoever kills Davy Jones will be the new Captain?