Correct me if I'm mistaken, but Ligero has the (most) strength, Seco- the flavor, and Viso - burn characteristics..?
That said, I go through cycles of liking really strong sticks to prefering more 'medium' cigars. Variety is the spice of life, right?!
You're on the right track, but you're mixing terminology specific to one region with characteristics / definitions from another. It's a common error / misunderstanding, let me see if I can clear it up a bit...
On the tobacco plant, from the top down, in Cuba and the DR, the leaves are classified: Ligero, seco, volado.
In Nicaragua, Honduras and the rest of central America: Ligero, viso, seco.
Cuban volado, Nicaraguan seco - same thing - just two different names: they're both a large mild leaf, excellent burn properties.
Cuban seco, Nicaraguan viso - middle primings, stronger than the volado/seco but still a very good burn.
Ligero is the top primings and the most flavorful/strongest leaves on the plant.
Different varietals of tobacco grown in different regions have varying levels of strength, there are some Nicaraguan visos that are strong enough to equal, even surpass in strength, some ligeros from other regions.
Those are the standard classifications anyway. Some factories have some additional classifications that they use for further grading / sorting / blending purposes.