Coming from someone who's played through every sub class, I started hunter gunslinger, went warlock voidwalker. Started using blink on lock, went to blade dancer. Got told I should try sunsinger, did, loved it for a time, went back to hunter. Now I've settled on defender after playing striker for a short time. Which is your favorite.
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No Backup Plans + gift of light and the other perk that improves Force Barrier = orbs for days with punching. For optimal punching and movement speeds use with MIDA-Multitool. I've had a lot of fun doing this recently.