>>2485286belt pockets are generally better for small items and chest pockets are generally better for large or heavy items.
chest pockets are really popular with ultralighters too. the only difference is they usually mount them to the pack straps instead of wearing a complete rig, because the chest rig itself doesn't need to exist if you're not a combat soldier who needs to quickly ditch your backpack.
why'd i even have to make this post? if you actually go /out/ and use this stuff you'd know baka.