Since I reload: 10MM.
It can be fired out of a revolver (610, 310).
It can be fired from a high cap pistol (15+1 in a Glock 20 or EAA Witness)
It can be fired from a compact pistol.
It can be fired from a carbine.
You can load mouse farts all the way up to nuclear loads that begin treading .44 mag territory.

Just my humble opinion.