I don't think it matters for T2 visable which specific camp other than having an area with as many possible named/PH spawns as possible. Think Matron/Flightmaster has 6 possible named/PH spawn points?
Think Kennelmaster area, you have 8 or so within easy reach. Kennelmaster, the named dog and named mushroom (been a while). The third named mushroom spawn point is a longer pull and I just kept it to what's in the actual kennel room and the mushrooms just outside of it.
Personally, all I do is pick camps to improve my warrior/tank. Just going through all the aug camps got most of my 16 accounts geared up on T2 visible. Then hitting all the T2 non-visible camps, group weapons/shield and T2 visibles rot. Just saying don't sit in a camp and have the camp specific drop rot while you gear up on T2 multiple camp wide gear when you can just move on to the next T2 gear specific camp and gear up on non-visible + visible.