My personal favorite is Brugal Extra Viejo, from the Dominican Republic. Then again, I don't get around as much as other forum members - so my taste buds have lead a sheltered life.
Captain Morgan Black Cash good stuff
Sailor Jerry
Captain Morgan
Then to knock the crap out of you a rum from Australia call Bundabery O.P. Rum. you have to get it from Australia but damn it will knock your socks off.
Fav is ron Aniversario (venezuela)
Am currently on a Centenario kick here in Costa Rica but like Flor de Caņa (nicaragua) too. Bacardi Aņejo is similar to Flor de Caņa 7 year. Captain Morgan's the ticket at home.
Ron Medellin (Colombia) aint bad either if your down that way.
Actually anything but Appleton.