My friends and I love to taste many of the upper-shelf expressions out there, naturally, but we're also big fans of finding lower-priced offerings.
Old Heaven Hill BIB (<$15, but haven't seen it in months)... Been so long since I've had it, I don't know that i can accurately describe it. Was it harsh? Was it sweet? I've looked everywhere for a bottle, but seems to be discontinued in these parts. (Minnesota.)
Old GrandDad BIB (<$20 for 1L)... Read that it's the same mashbill as Basil Hayden's, but aged for half as long. I totally can see that. Surprisingly smooth. Lots of spice, and well rounded. I like, and will probably always keep a bottle around.
Fighting Cock (~15 for 750)... Been a few months, but I remember it being serviceable. Not particularly complex at all and it seemed more alcoholic than its 103 proof would indicate.
Very Old Barton BIB (~$20 for 750)... Haven't tried this yet, so I probably shouldn't have it in MY list... but I plan to pick up a bottle on my next trip to the LS.
(DISCLAIMER: price can vary wildly by state, and what you find for a sub-$20 750ML in one region might be $30 in another.)
Anyway, what are your favorite budget bourbons?