I've edited that bit.

And out of Stealth and Barrier, Stealth would probably be the one to go with, he wouldn't have much exposure to combat or anything at all for the need to use Barrier. It's explained he likes to train himself out of the notice of others, so Stealth definitely.

Though, are you confusing it with Concealment/Cloak, where it's invisibility? Because Force Stealth pretty much conceals one's capabilities, and prevents one from being sensed, usually.