That's a hard one to answer. I still consider myself a beginner, but with the songs that I have learned, I use a combination of all of them. However, if I had to pick a "most prominent" one, it would be the forward roll.
I know the stick shift takes more time to learn than the auto, but my advice is to start grinding those gears. Keep at it and before you know it, you'll be floating them with ease.
By the way, I'm a self-proclaimed shade tree mechanic. Been restoring a few old cars the last few years. You do any restorations?