Moleskines are the Rolex/Montblanc of the notebook world, all brand-name with not much behind it.
That story about Hemingway using a Moleskine is total crap.
Anything using Clairefontaine 90g paper is better, such as Quo Vadis Habana, some Rhodias, Exacompta etc.
Especially if you use a fountain pen.