Freezer? Whatayacrazy?! It sits for years in barrels in nice mild Kentucky or Tennessee.
I've become bourbon person in recent years. Woodford Reserve, popular but way too harsh for me, goes down like fire. Basil Hayden, nice but gives me an instant headache for some reason. Evans Williams, the entry level version, pretty darn good for a lower shelf but not my most favorite. Rebel Yell. Nope, too harsh for me. Bulliet, very nice in my opinion, but not the top. Buffalo Trace, ditto, good. My wife recently bought me a bottle of Bib and Tucker. Wow, just like the silly sounding description says, leather, cedar, butterscotch, molasses, something old and antique-y about it, I really like it. I take my bourbon in a heavy cut crystal scotch glass with one big ice ball or big cube and Bib and Tucker stands up to ice without losing its complexity.
My favorite though is Jefferson, very small batch. Stands up to ice well. I've never had a bourbon that handles ice so well. Instead of getting watery or weak, it actually shifts the flavor profile and different notes come out as the ice melts. I see a previous poster mentioned Jefferson Ocean. I had that once and the difference was not worth the price to me, didn't blow me away, but I understand different voyages have very different flavors. (I think they're up to ten or eleven voyages.)
A bourbon fanatic would have a stroke but I do put a Cara Cara orange twist in my bourbon once in a while, and I do like Old Fashioneds. Bourbon lends itself well to a rich, mellow citrus note in my opinion, as long as it's not too sweet. All a matter of personal preference though. Welcome to bourbon.