They are the best!
I stick to only cuban's cohiba siglo series, after trying more than 50 types of cigar brands (I stopped counting after throwing out the packages/ boxes/ tubes) from various countries.
I believe it's their technical-know- how (requiring upwards of 100 steps to complete the coveted masterpiece) & their leaves.
Cuban tobacco has characteristics of both flavor and strength which have not been duplicated elsewhere. Cuba has a very long history of plant horticulture dedicated to the two strains of cuban tobacco (criollo and corojo), which has brought forth refinement and excellence to the tobacco.