I hadn't thought of it but there's definitely a thematic connection because both pair vetiver with sweeter notes, FE with vanilla and the Hermes with tonka. The feel and aroma of the fragrances is quite different. The Hermes borders on gourmand as the vetiver and tonka fuse seamlessly into an accord while the ELdO's vetiver note stays prominent and contrasts with the creamy vanilla underneath. I've long felt Fat Electrician is the modern day Habanita and prefer FE to the Hermes, but both are excellent.
Great idea comparing these two. Smooth.