So as I have progressed I have moved away from chest rigs and plate carriers (not in the combat business anymore) and work strictly from a war belt.
I use a Crye MRB with multiple BFG pouches. I prefer the 10 speeds as I can quickly and easily change between pistol pouches and rifle pouches or both depending on the class/range session. I also use a BFG/Mayflower dump pouch at class but ditch it when not at a high round count class.
I recently picked up the new BFG micro trauma kit and mounted directly at the 6 and found that I can access it with either hand easily without removing the belt. Carry one CAT in a BFG MP7 pouch.
As for my holster I primarily use a 6354DO on a QMS attachment. The belt itself is extremely comfortable on the range for 12-14 hours at a time and is slim enough that I can ride in a vehicle without discomfort or ease of movement.