I would say the Sennheiser 500 series are some of the most comfortable available on the market, the pads are both wider and deeper than those of Beyers. Their plastic build also means that they are super light and is hardly noticeable when wearing them for long sessions.
I agree, and the comfort only tends to improve after a while. The clamp force gets smaller or at least I feel like it does. It could be the pads slowly adjusting to the contours of my particular head as well, sort of evening out the pressure. Or both. Anyway, even straight out of the box I found the 560S very comfortable.
), and the comfort was fine.