Just demoed the DT770 Pro 80 at Guitar Center for the first time and I have to agree. The DT770 has more detail and more bass (and this was driven directly by my phone). While the velour pads were soft, the clamp was tight, so the 1R is definitely more comfortable. Perhaps the comfort gap would be narrower if the DT770 headband were stretched a bit. I was also very impressed with the build quality of the Beyers. These things felt solid, especially for their light weight, and there were no creaks or rattles.
Anyway, the DT770 is on my radar as a replacement for the 1R. It's just a matter choosing between the Pro 80 and Pro LE 32, and confirming that the clamp can be noticeably alleviated by stretching the headband.