I like Dominican tobacco.
Try the Romeo Y Julieta Star Crossed Dark if you want to see what a good use of Dominican Piloto Cubana and Olor is all about. Give them about four to six weeks of rest.
Dominican Piloto Cubana can have the taste of nutmeg, vanilla, nuts, cinnamon and earth.
Nicaraguan tends to be darker in flavor with espresso, earth, oak, pepper, and dried fruit flavors.
That is broadly speaking and does not start to talk about Honduran, Brazilian, Cameroon, Besuki, or Sumatra leaf. There is usually a mix of tobaccos in most cigars.
Also the region and type of tobacco can change the flavor of tobacco from a country. You can get Corojo grown in Ometepe, Nicaragua and it will taste slightly different from other Corojo grown in a different region of Nicaragua. Another example is Connecticut Broadleaf and Pennsylvania Broadleaf. Plus a Sumatra leaf may be grown in Ecuador or Indonesia. You can also get Connecticut grown in the US or Ecuador.
It is almost impossible to tell exactly what a cigar from a certain country is going to taste like without knowing more about where the leaves were grown. That comes with a lot of experience and reading.