I run NB and I am the opposite, I do okay on trash/AoE. If it dies quickly (I have a WW in my group and sometimes demon hunter) I do crap damage), if it dies slowly I can pump out a good sustained AoE with high ramp time. Basically Moon Moon once make sure I have it on CD-sunfire-moonfire on long living mobs/starfall if I have AP-Lunar Strike. If the mobs are not going to live long enough for sustained aoe then I usually just take moonfire out of the rotation. Would note that I sometimes hold off on sunfire if the mobs are not grouped up, if that is the case I put moonfire infront of sunfire on the opening until the mobs get grouped together, I then sunfire and continue.
Boss fights/single target I am usually first on DPS. Even on movement fights I tend to do good dps on as I just time my starsurge with movements and find spots in movements to stop and cast something quickly.
- - - Updated - - -
I don't understand what you mean here. Is starsurge struggling when you unlock everything or does FoE ? I assume Starsurge but I just want to verify as it confused me.