"Fishing isn't a matter of life or death.
It's much more important than that."
I use the snap swivels that have the "hook" end on them to help keep them from pulling open.
But I have to say this, when it is cold I find myself using snap swivels more and more for everything! As my hands get cold, they get stiff and tying a knot can get to be a real bear for me. In this case I use a polymer knot on the swivel. I use to use the chinch and improved chinch knot for this and all my flies. I still use it on flies and attach their leaders to the snap.
Gone fishing ..... Will return at Dark:30
For jigs, I tie direct. If you chunk jigs with a spinning rod like I do, then line twist is inevitable. To remove line twist, remove everything from your line and let it out while driving down the lake. This will remove all line twist better than anything. I avoid using swivels for finesse applications. Though with many walleye techniques, like worm harnesses, they're needed and don't hamper the presentation.
And when I do use swivels, I use good swivels--like Sampo. Those brass cheapo's are garbage and aren't worth the savings.
That stink took my bait!!!