Although agreeing with Captain Fishpants does make me question my sanity , I'm going to have to do so in this case.

For me, the setting of a book isn't as important as how well written it is and how well it can hold my attention.

I've always liked fantasy books by authors such as Gemmell and a bunch of others whose names I can't remember offhand, but equally so with Sci-Fi books by a variety of authors and even ones set in the modern day.