I play CC defense alot so i have darklight. Ill usually flip it on and off at certain places just to make sure there arent any stealthers there. If i didnt have it i would swear there was always one following me .. im just like that.
On the other side, i love finding a stealther crouched down and the pretending i dont see them.
For my second i think i will try personall shield. Dont really have any weapons that are good at range (TR HW/AV grunt) and i rarely need to run from base to base, etc. If a MAX gets close to me im usually dead anyways. AV is much better at range.