Being a huge fan of Barton's 1792, I was happy to lay my hands on a bottle I was missing, along with the 12 years old: Sweet Wheat.
My buddies and I tried all of them and my personal best is still the Full Proof, followed by Bottled in Bond, Sweet Wheat and Small Batch... Single barrel is fine, but it's so close to the Small Batch that I personally can't make the difference and rather spend the less $$ for the SB...
Opened and tasted a bottle of 1792 Full Proof awhile ago but I do not recall it being particularly memorable. Will have to revisit it.
There's a bottle of Small Batch on sale for $30 at my local BevMo and a bottle of Single Barrel at the closest TWM to me for $33.
Since the BevMo is located only 5 mins from my house (while the TWM is located about 40 miles away) and since you didn't notice much of a difference between the 2, I may buy the bottle of the Small Batch at BevMo give it a try.
Other recent bourbon purchases that I have not yet opened/tasted include a bottle of Colonel E.H. Taylor - Small Batch and Baker's 7 - Single Barrel (which @hhmore mentioned above). Other bottles that I purchased previously but do not plan to open any time soon include: Michter's 10, Weller 12 and Pinhook Bourbon War - Vertical Series 4 & 5.
Among the bourbons on my current buy list are:
Blanton's Gold
Booker's Boston Batch
Boondocks 8 yr Port Cask
Bulleit Barrel Strength
Burning Chair - Barrel Select
Hickory Hill 12 Single Barrel
While I have seen a bottle of Blanton's & Bookers for sale in the past, I have not seen any recently. The Bulleit is available at my LLS for a high but affordable price and the Boondocks, Burning Chair and Hickory Hill are available at TWM.
There's also a bottle of Weller Full Proof and Antique 107 available at my LLS for $300 and $150, respectively. Given my less than notable tasting experience w/Weller Special Reserve, I'm no longer motivated to buy the Full Proof but may but the Antique 107. Will probably buy it w/the Bulleit, if they're still there, during my next trip to my LLS.
However, before I open any other newly purchased bottles, I want to finish off various other previously opened bottles that I think are "ok" but that I probably will not buy again in order to make room on my shelves for others.