Varies day by day. Lately:
Easily attainable: Old Forester 1920, Heaven Hill 6 year Bonded, Four Roses Single Barrel picks, Buffalo Trace, larceny, Evan Williams Single Barrel.
Slightly harder to find or more expensive: Elijah Craig Barrel Proof, 1792 Full Proof Single Barrel Picks, Stagg Jr, Blanton's, Knob Creek Single Barrel Private Picks (I have a case or two left of our pick), EHT Small Batch
Summers in mixed drinks: Old Fitzgerald, Heaven Hill (green label), Old Forester 86, 1792 Small Batch
Honestly, most anything Heaven Hill is a solid daily go-to when I can't make up my mind otherwise. It really depends on my mood. The only major distilleries I don't reach for often are Wild Turkey (no reason, i just never have a craving for it) and Woodford (though I like Old Forester).