I'm running mostly the cancer related projects since that disease caused my family and acquaintances much grief the past years.
Mostly rosetta and WCG offers those and are compatible with phones so I'm mostly running those. I know if you want the min maxing there are better options available but I don't care one bit.
I am very sorry to hear that - it's a terrible disease.
Fully with you on not bothering with min-maxing. As we could have probably expected, on the whole the 'least efficient' projects to run are the ones that are the most useful to humanity, because more crunchers want to run them.