Sorry to hear that Axdby, I think comfort is like a metaphorical brick wall - first it must be broken, before you can start enjoying and obsessing over your new headphones. Ironically, the majority of discussion is about sound; what attracts us to buying a headphone in the first place.
I particularly suggest trying the MDR-1A next, since it's most likely to give you least amount of grief. Followed by the Momentum 2.0, and M100 with XL ear pads, or (in your case) calling it quits with the QC25
I don't think possible to make a comfort ranking, but I can make some general assumptions about what I know effects comfort;
Plushness of padding in the ear pads
Plushness of padding on the headband
Surface area of headband against the skull
Depth of ear pads
Width of ear pads
Height of ear pads
Ear pad shape; oval / circle
If material is breathable / ventilated
The overall weight of the headphones
Type / coarseness of material used
Fit adaptability; headband tilt, length
Ear pad tilt / rotate
Clamping force
Some of these could be "less is better" or "more is better", but others would be completely fit dependent.
Finding the headphones which "ticks the most boxes", would be the best choice here.
Then all you need to do is balance that choice with
everything else that makes the headphone fit for purpose, while trying to avoid a dead lock; analysis paralysis.