[TheRiddick]

Actually, there is one difference, come to think of it, in some cases such as brandies produced here in USA.

Those produced in Cognac are mostly produced from one grape varietal, uni blanc, with sometimes small additions of other less known grapes. Brandies made in USA can be made from any grape whatsoever. The end result, at least in my experience, is that you get more nuance and complexity this way since each grape adds something to the blend, another layer of flavor if you will. Similar to a cigar where each component (leaf) adds its own flavor to the blend.

Don't only stick to Cognac, try some great brandies from Spain and USA, I am sure you'll like at least some of them. And most likely may prefer USA versions to Cognac.