If I had to pick only one tobacco type to smoke forever, it would be oriental/turkish, but of the two you mention, I'd pick VA all the way.
The broad range of VAs, from bright yellow, gold, orange, red, bronze, brown, and even dark air and dark fired cured, and the range of processing, pressing, stoving, and maturing/fermenting keeps me interested, and the level of sweetness and depth of flavor they add makes them my favorite base for any blend.
As far as burley, I've found I enjoy the Ky Dark Leaf varieties very much, to the extent that I don't event think of them as burley varieties any more than I do perique. I think they are only roughly classed as burley bec6of their low sugar, high oil content.
I tend to associate the word "burley" with white/light/yellow burley that is used mostly as cheap, highly casing/humectant absorbent filler in cigarettes, gas station flavored cigars, OTCs, and goopy American aromatics.
When I smoke American burley based blends, I inevitably get a gruff throat and my ears get stopped up and pop, often painfully, like a childhood earache. Ky Dark Leaf will gruff up my throat a bit, but never gives me the earache symptoms. After much experimentation, I still haven't concluded if it's caused by the light burley leaf, or perhaps something that nearly all American burley is sprayed or cased with by the farmers during curing, before it even gets to the manufacturers/blenders.