Single-celled life, multi-cellular, mushrooms, trees, whatever ate lignin, dinosaurs, rodents, humans, Electric beings? I mean, there's nothing 'unnatural' about a world populated by robots, we just assume that 'alive' means 'made of meat', but the raw materials in a robot and a human are all Earth based.
Realistically, superconducting processors would most likely be much faster, or at least cram more cores on a single die.
In a serious note, superconductors are likely useful in electric magnetic motors and probably in high power electronics and batteries in general, no?
I think the winners will be those which are cheaply and reliably made at scale out of common and non toxic elements and have long durability, or if this isn’t fully achievable something close to this goal.