Like Funkstar, I have the following

Main:
Pitbull
Prat
Lightheaded
Doublewide
Cartographer (with all the modules)

All:
Trinity Bars (2)
Omen
NECB (Enemy cast bars)
Quest Helper

Notes:
I swap around between my instances for collection quests and deaths etc so have omen everywhere but if you have other mods that use Threat 1.0 then you don't need omen to broadcast threat info (Prat, Pitbull many other Ace2 addons)