Depending on your own tastes and experiences you may, or may not, like some of the Belizean rums and that includes 5 Barrel...it is a matter of personal taste.
I find its oak and flavors (a vanilla overtone, characteristic in my opinion of many the Traveler products) to be a bit unbalanced for a five year old rum although it has a nicer more refined and drier finish than some of the lower "barrels". I'll be interested to hear your opinions once you've tried some. The English variation on rum retain more of the molasses undertones and depending on distallation technique that flavor can be very overwhelming (e.g Wrey and Nephew (Jamaica) or St Vincent's Sunset Rum). I would not charaterize 5 Barrel as having that overwhelming single pot distillate flavor.
Of the Belizean Rums tried my wife likes Old Master Extra Mature. It's is her favorite. It's on the sweeter finish side but to her mind it is a nice off the rocks or in a snifter.
Now if you dont mind spending some money pick up a bottle of Ron Zaccapa 15 Year (Guatemala) at the Airport duty free. As a single barrel boubon guy I'm sure the $30 odd US dollars wont make you shirk. This rum is a Spanish variant in the Anejo style. These rums are typically smoother and to my mind more enjoyable than their English bretheren. I'd also add that it is the younger brother of the Zaccapa 23 YO Centenarrio rum that year after year is judged to be one of the top rums in the world. Ah yes, I just remebered! You can get the 23 YO Centennario at the duty free, or at least thay had it the last time I was there...mmmm I'm thinking it was like $60USD
Again all this is from my own observations and biases so please experiment!