Bottles you have but haven't opened or tried yet that you really need to?

My three: Elijah Craig BP, Larceny BP, Frey Ranch.

Particularly ECBP which I have an A124 and a C924. These are all over the place and often marked down $5 or $10. Need to see if they hit me right and should stock up on, or two is plenty.

Going to a whiskey fest sort of deal end of summer, so even if I don't open them by then I can likely get samples.

How about haven't tried, haven't bought? For me: 1792 and Barrel are the big ones.