I have the DCA Aeon 2 Noire, Focal Clear, Sennheiser HD6XX, and Sennheiser HD800S. For overall comfort the AKG K712 Pro ties for #1 with the HD800S. It’s lightweight and has a supple leather headband, large earcups, and soft memory foam velour pads. Since I have a pretty wide head and wear glasses, the amount of clamp is by far the most important factor to me. Thankfully these have very low clamp so I practically forget I’m wearing them.
Yeah the FR isn’t the most neutral, but they respond well to EQ. With the EQ preset I prefer there is plenty of bass punch while still retaining their signature spacious sound.