This is a very subjectve and individual decision you need to make for yourself. Our opinions should not really influence you. I prefer VdR, but test them several times and make your own statement with them. They are both good.
Passage d' Enfer, translated means "gates of hell" and is named after an early L' Artisan shop that was on a street of this name. It's a smoky incense fragrance that is quite nice but ultimately I decided the drydown worked better as a feminine fragrance - I gave it to my girlfriend who has always loved it much more than I do. As an incense fragrance I really prefer Comme De Garcon's incense series to L' Artisan. Although Navegar is my other favorite L'Artisan and it has a peppery incense scent to it that I like very much - recommended.
Voleur d' Roses is one of my favorite frags. The combination of rose and patchouli creates an otherworldly scent with a subliminal high mental vibe that becomes a part of you, kind of grows onto your subconscious. Be sure you really like it because it will want to stay. It's not really patchouli and not rose but patchouli/rose an all new thing - sort of hypnotic. I like it a lot. I smell it even when not wearing it - it's memorable and is unique.