For me it's the 30-06 far ahead of everything else. Then probably 9mm P and then 45 ACP. Possibly 38 Special would be in there instead of one of the other pistol cartridges. I'd have to look at my reloading notebooks to give a guaranteed accurate answer but I know 30-06 leads them all.
I load and got through a few pounds of 9mm every range trip. I have lots of 9mm guns. .357 comes next and .38 is starting to get popular again with me again. A lot of the .357s are target .38 loadings, but I can't resist making a few fireballs.
Rifle I shoot 30-06, a lot of reduced loads and a few hum dingers.
When my friend and I get together we shoot a lot of Garand and 7.7 mm Japanese. I shoot his .45 some also.