I don't particularly enjoy smoking cigars, unless I can do it out of doors and with a good glass of Bourbon in my hand. They just go together.
And I'm not positive Cubans are significantly better other than how hard they are to get hold of in the US. However, aficionados worldwide acknowledge their superiority so I will defer to them. They say the Cuban climate and soil combines to grow the best tobacco. For me, these have a smoothness, or lack of "bite" that even the best Dominicans seem to have. (Dominicans are probably considered 2nd to Cubans overall- again, for the climate and soil)
So it's like the difference between a California and Italian wine.