I think autoblocks are significantly easier, especially since you never need to unclip the autoblock from your harness, limiting the chances of you dropping it.

I think autoblocks are significantly easier, especially since you never need to unclip the autoblock from your harness, limiting the chances of you dropping it. The hold is also much looser than a prussic, which is an advantage when used as a rap backup and probably a disadvantage when used for ascending.