A friend loaned me his Ipad and now for some time I am the possessor of a great collection of ebooks.

. I cannot decide which one should I start first. I am thinking of reading the inheritance series by Christopher Paolini first. I do love a great dragon story, but on the other hand there is the Mortal instruments series to choose. I saw the trailor of the movie 'The city of bones' and instantly decided to read the book, because looking at the trailer I can't hold my excitement.
someone please suggest, Inheritance or The mortal instruments?? which one??