Recently kicked -
Pilsner
Oktoberfest
Blonde
American Pale Ale
Amber Ale
British Mild
British Bitter
On Tap/bottled/Drinking -
Amber Ale
IPA
Southern English Brown
American Pale Ale
Dortmunder Export
Barley Wine
Bourbon Barrel Porter
Kegs on Deck - ready soon
American Brown
Belgian Golden
Irish Whiskey Red Ale
Fermenting
British Mild
Amber
IPA
Helles
Long term aging
Belgian Strong Dark Ale
Sour Belgian Cherry
Barley Wine
Thinking ahead: Pilsner, maibock, British Bitter, bourbon porter, another sour........
I would say I keep american Amber, Pale Ale/IPA, British Dark Mild and some sort of lager (helles/pilsner/oktoberfest, etc.) in a very steady rotation and then mix in the others as I see fit.
3-6 month beers - lagers, big porters/stouts, some belgians,etc.
6 months + sours, barleywines, some belgians, BIG beers