I usually drink rum neat. don't really do flavoured/spiced rums but the coffee dead mans fingers is very nice. Gosling's for a proper dark and stormy. Woods is superior to lambs imo. Mount Gay have a nice range to suit taste and budget. Pussers is the go to and can't be beaten, gunpowder proof is the one you want. I've got a bottle of the 75% overproof, not to be drunk neat! El Dorado 12 year is also very nice and very drinkable, saw it on offer in waitrose the other day for £33. I wouldn't waste too much money on a bottle if you're going to mix though.