Jig nymphs are a popular style to fish being that they get to the fish quickly due to their typical characteristics: Heavy bead and slender body.  Another benefit is the jig hook, encouraging the fly to ride hook point up.  This will cause less snags, so you are not constantly retying these patterns.  Finally, I suggest taking some of your favorite nymphs and tie them on jig hooks to see how they perform; I think you'll be excited by the results!