Variety in choices and impressions is what makes the hobby interesting.
I find the Z1R to be epically comfortable. The pads are thick, yet soft and the lamskin is very smooth. Of course, they do get hot if ambient temperatures are high, but that is going to happen with any other model with leather pads and closed format. Not perfectly comfortable in hot rooms.
I love the colors and comfort of the HD800 and even that feels itchy, heavy and plasticky after a switch.
The Ethers are great, but just like the Eikon I think they're not up to the same standard as the Z1R in build and sound,totally different leagues,built by people with very different levels of expertise.
Tyll had an interesting post, but I think he had an outlier pair. His finding are not matching many others from people in the field. Actually, there's a post from Jude on the front page about it at the time I'm writing this.
Anyway, my point was that the 800 are super comfy, but having both there's no way I put them at 10/10 in comfort after ten months with the Z1R. There's a reason I keep the 800 tho
Ps. Nice paint work! I should mod my 800
While I agree with previous comments that the HD800 are not as warm to wear as the Z1R (open headphones typically have an advantage here) and technically I would give the nod to my HD800S over my Z1Rs, I find the 6kHz peak on the HD800 far, far more "troublesome" than the smaller 10kHz treble peak of say the beyer T1.2 or AKG K812 (again, I do think the HD800 is a more technically superior headphone, but this 6kHz peak really is a big issue for me). For reference, there isn't much going on at 10kHz (quite unlike 6kHz):
The so-called peak on the Z1R is quite the controversial thing right now. My experiences with a half dozen Z1Rs since their release sound very much in line with Jude's measurements; otherwise I wouldn't have bought my pair this past winter. That said, as much as I hold the HD800/HD800S in high esteem, my Z1Rs still get substantially more head-time. But we shall see...hopefully this doesn't take longer than the Russian meddling investigation into the Trump campaign.