I find the Extrait slightly fresher and yes, also bluer than the Attar, which is just as beautiful. Agar Aura has become my favorite brand in the Oud category.
The attars seem to mostly win out in direct comparison to the sprays. I only know the extrait, which didn't strike me as very oudy; more fresh and mossy, actually. Definitely intriguing.
Agar Aura has become my favorite brand in the Oud category.