Both sound interesting.

Personal opinion: one thing I warn to avoid is cliche. You can give the campaign the flavour of the world, even put some of the main characters in but don't try and railroad your players into following the plot of the series or borrow too many plot elements from the books.

I ran a campaign based on Terry Brooks Shannara series. Sadly I had players who demanded Elfstones every five minutes. Heh soon sorted that though... they met Brona (i set the campaign before he lost too much humanity) and came off a little the worse for it, all because of the Elfstones!