This is a silly way to think though, you cannot play disability diagnosis Top Trumps.
Off the top of my head, in my family and friends and colleagues, there are people with brain tumours, breast cancer, bowel cancer, heart defect, asthma, osteoarthritis, fused spine, hearing impairments, visual impairments, several neurodiversities, severe mental health issues, autoimmune diseases, neurological disorders, epilepsy, mobility issues.... I could go on.
Their disabilities may fluctuate in their effects, day to day, month to month, year to year, or change over time getting better or worse. Some needed time managing the conditions, trying and learning what works and makes the difference between barely functional and a normal life, or trying different walking aids to find one that suits, or being prescribed a different medications or physio, reducing some tasks so that energy can be spent on others, or it may simply be support from other people that stops them being house bound.
Some cope better than others and you cannot simply guess from their diagnosis who manages and who needs more support.
How would you rank them in order of most to least deserving of help?
Which ones do you think are most worthy of your sympathy?
How would you even guess which is which when most of them are hidden disabilities?