First, my other favorites, which I have discussed on other threads.
Barrilito 3 star. Superb, big dense, flavorful, complex, cedary, leathery, with a nice little bite in the finish. Many years ago my all time fav. (Don't bother with the 2 star). It has come to be my fav or second fav again.
Barbancourt 15 year subtle, complex, not the beast that Barrilito is. Cognac-like with a hint of molassesy rumminess in the finish. I used to give this my highest plug, but somehow just not enough going on. Top notch, but somehow not quite my go to rum any more.
El Dorado 15 Year. Well, at $34 here in Boston, one of the all time booze bargains. Though Barrilito is about the same. Heck, rums are just priced less than scotch and cognac. Much of the complexity of Barrilito, but less of a whack, and more of just all around complex deliciousness. Chocolate, molasses, citrus, some wood, and lots lots more I can't even put my finger on. Perhaps my fav rum as of now. I could just sip it and sip it. I serve it with just with a cube or three of ice. Great stuff.
By the way, if you mix any of these with anything other than water, soda, or ice, you are committing a crime. Use Coruba, or Myers, or Goslings instead.