On the roadie I run a 39/54 with 11/28 cassette. It was never my choice though as my mate left his bike at my house and I have slowly taken ownership of it. The cassette has a good spread but I should probably drop to a 38t front for more comfort on climbs. My MTB I Run a 50t with a 34t front.
I live in Cape Town and if you want to check out the mountains I ride in I would say my 'gram account has some decent shots
RE: Huge cassetes on road bikes! What's youre opinion?