Unless leading is involved, I find revolvers easier to clean.
That's mostly because I try to clean all the burned powder in an auto that goes down in the grip, the mechanicals in that grip, trigger bar, hammer, sear, magazine, grooves in the slide, grooves in the frame, locking lugs, interior of slide, extractor, slide lock, recoil spring, etc. etc.
With a revolver, I'm really just cleaning the cylinder assembly, frame around the cylinder, and barrel. The quantity and size of chambers in the cylinder can make it easier or harder for me. 5 versus 9 chambers, for instance.