I turned my belt into a true LBE setup designed for being on foot for long periods. Added some suspenders and I love it. It's truly a bat belt.
Minimal sustainment equipment; poncho with 550 cord, canteen and cup, water purification pills, compass, protractor for topo maps, several ways to make fire, small hi-vis panel, flashlight, and some other little morale items, IFAK, all of which are coupled with pointy-ended stuff like a pilot's survival knife, pistol, two rifle mags and two pistol mags.
I have a PC and chest rig that I carry 6-8 M4 mags and other things like field binos, more advanced first aid gear, and one day, a FLIR scout or some NODs.
I think it all depends on what you want to use your gear for.
I wouldn't use the above setup for driving around in a vehicle. The PC with mags and a lean belt with just a pistol and some pistol mags with everything loaded on your front makes more sense.